This series was constructed by the Bank of England as part of the Three Centuries of Macroeconomic Data project by combining data from a number of academic and official sources. For more information, please refer to the Three Centuries spreadsheet at https://www.bankofengland.co.uk/statistics/research-datasets. Users are advised to check the underlying assumptions behind this series in the relevant worksheets of the spreadsheet. In many cases alternative assumptions might be appropriate. Users are permitted to reproduce this series in their own work as it represents Bank calculations and manipulations of underlying series that are the copyright of the Bank of England provided that underlying sources are cited appropriately. For appropriate citation please see the Three Centuries spreadsheet for guidance and a list of the underlying sources.

This NBER data series m04108 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04108

For Years Since 1915, These Data Are Mainly Bls-Commerce Estimates; Hence For Later Years This Series Is Superseded---Except For Comparison With Earlier Years---By NBER Series 02260. For Years Before 1952, Kuznets Calculated Total Gross Construction As The Sum Of (1) Cost Of Oil And Gas Wells Drilled, And (2) All Other Construction. The Estimation Procedure Followed Was Complex, And Is Described In The Source Work Cited Above, Q.V.; See Also Lipsey And Preston, Pp. 251, 252. Data For 1952-55 Are Based On Commerce Department Figures Published In The"Survey Of Current Business" For July, 1956. Source: Annia; Estimates Underlying Five-Year Moving Averages From: Kuznets, Simon, "Capital In The American Economy: Its Formation And Financing, " (Princeton University Press For NBER, 1961). This NBER data series a02147 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: a02147

Kuznets Derived This Series By Adding Four Component Series: Nonfarm Residential (NBER 02209), Private Nonresidential, Public, Excluding Military And Military. Kuznets' Measures Of Capital Consumption Are Intended To Include Not Only Physical Deterioration But Also Depletion, Obsolescence, Accidental Losses Or Damage To Capital, And Demolition. They Are Calculated On A Replacement-Cost Basis. See Lipsey And Preston, P. 253, And The Kuznets Source Work Cited Above. Source: Annual Estimates Underlying Five-Year Moving Averages From: Kuznets, Simon, "Capital In The American Economy: Its Formation And Financing, " (Princeton University Press For NBER, 1961). This NBER data series a02207 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: a02207

Source: Simon Kuznets, "Capital In The American Economy: Its Formation And Financing, " (Princeton University Press For NBER, 1961), Table R-30 This NBER data series a02208 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: a02208

Series Is Presented Here As Two Variables-- (1)--Original Data, 1890-1952 (2)--Original Data, 1952-1958. Additionally, Series 04081B Is Comprised Of By Original Data For Crude Cottonseed Oil For 1909-1941. For 1890-1917, Prices On First Saturday Of Each Month. For 1918-1957, Average Of Weekly Quotations From Oil, Paint, And Drug Reporter. For 1890-1913, Called Linseed Oil, Raw, City, Barrels. For 1913-1916, Raw, In Barrels. For 1917-1935, Linseed Oil, Raw. Beginning In 1927, The Series Was Converted From Pounds To Gallons By Multiplying By 7.5 (1926 Given In Both Pounds And Gallons). There Was A Slight Discrepancy Between Data Per Gallon As Given And Computed Data. In 1947, Bls Code Number 06-22-36 Replaces Old Number 552. Series Ends On This Basis Following May, 1952. Source: Bls Bulletin No. 39 (Pp. 418-419) For 1890-1901; Nos. 45, 51, 57, 63, 69, 75, 81, 87, 93, 99, 114, 149, 181, 200, 226, 269, 296, 335, 367, 415, 440, 473, 493, 521, 543, 572; 1932-June, 1935 Monthly Bulletins, "Wholesale Prices." For 1942 On: Bls Bulletin Nos. 718, 736, 759, 785, 870, 877, And 920 For 1942-1946, And 1143 For 1951 On. Bls, Prices And Price Relatives For Individual Commodities In The Revised Index: 1947-1950, Group 6--Chemicals And Allied Products, For 1947-1950; Monthly Wholesale Prices For 1952. This NBER data series m04081a appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04081a

Price Is The First Of Each Month, In New York, 1890-1917, And Is The Monthly Average Of Saturdays' Quotations, 1918-1944. Prices Were Published As Cents Per Pound. Price In 1914 Is For 100 Pound Packages Or Over. Beginning In 1940, Area Given Is "East Of Rocky Mountains." Source: Bls Bulletins And "Wholesale Prices" This NBER data series m04135 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04135

Data Refers To Cents Per Pound In Car Lots Through 07/1930 And In Tank Cars Thereafter. Data Is The Average Spot Price. 1891-1908: Data Was Compiled From "Oil, Paint, And Drug Reporter", 11/7/1910, P. 40. The Average Price Per Gal- Lon Was Divided By 7.5 To Convert To Pounds. 1909-1921: Data Is From Annual Reports Of The New York Produce Exchange. 1922-1941: Data Is From "Oil, Paint, And Drug Reporter" And Is The Average Of Daily Ranges. Source: Usda, "Agriculture Yearbook", 1924, P. 766 And Later Yearbooks; Also Editions Of "Agricultural Statistics" (Usda) And "Wholesale Prices" (Bureau Of Labor Statistics) This NBER data series m04081aa appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04081aa

Data Are The Averages Of Monthly High And Low Prices As Reported In The"Oil, Paint, And Drug Reporter". Weber And Alsberg Computations For All Years Except 1918-1925, For Which Data Are From "Statistics Of Fats, Oils, And Oleaginous Raw Materials", Usda Statistical Bulletin No. 24, September 1928, P. 62. Source: Food Research Institute, Stanford University, "Fats And Oils Studies" No. 5, June 1934:"The American Vegetable-Shortening Industry" By G.M. Weber And C.L. Alsberg, P. 347 This NBER data series m04122a appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04122a

No Quotation For August, 1910. Figure For July, 1916, Interpolated By War Industries Board. Data For 1916-1918 Checked With The U.S. War Industries Board, Price Bulletin No. 15, P. 11, Which Is The Original Source For These Years Average Price Per Pound, F.O.B. Southeastern Mills. Page 58 Of Statistical Bulletin No. 24, Usda Also Has A Price Series For Crude, S.E. But Gives An Average Of The High And Low Price Per Pound Each Month. Telephone Conversation With An Oils Specialist At Oil, Paint, And Drug Reporter, On December 5, 1938, Revealed: A) Crude Cottonseed Oil Is And Always Has Been Sold In Tanks, The B.A.E. Note To The Contrary (Agricultural Statistics, 1938, P. 116) Notwithstanding. The B.A.E. Error Probably Arose Because Of The Manner In Which Prices Of Crude And Refined Oil Are Quoted Near Each Other. Refined Oil Was Sold In Tanks At Times And In Barrels At Other Times; B) The Oil, Paint, And Drug Reporter Has Used Slightly Different Wording In Describing The Market At Different Times, But Actually No Change In Market Quoted Has Taken Place. F.O.B. Mills, Southeastern, And Immediate Southeastern, All Refer To Spot Sales At The Southeastern Mills. "January, 1929-July, 1930 Quoted In Barrels," A Footnote In The Source Is Wrong According To Oil, Paint, And Drug Reports Office And By Inspection Of This Original Source. Interpolated Data Used For June-July, 1926, July, 1927, June- August, 1928, June-August, 1929, And July-August, 1931. Less Than 10 Quotations For Month Of December, 1931. Other Quotations Were Bids. Source: Yearbook Of Agriculture, 1930 (For Data 1909-1928) P. 695, Agricultural Statistics, 1938 (For 1929-1938) P. 116, Bureau Of Agricultural Economics: Prices 1916-1918 From War Industries Board Price Bulletin No. 15. Prices For 1919-1928 Are Averages Of Weekly Quotations In The "Oil, Paint, And Drug Reporter." From August, 1928 Through July, 1934, Prices Are Averages Of Daily Quotations In The "Oil, Paint, And Drug Reporter" Except For The Period October, 1932-June, 1933, When The"Oil, Paint, And Drug Reporter" Published No Prices For Crude Cottonseed Oil At South- Eastern Mills. For That Period,(10/1932-06/1933), The "New York Journal Commerce" Daily Prices Were Averaged And Used. For August, 1934 Through 1937, Prices Are Averages Of Quotations For Saturday During The Month-- Quotations Given In The "Oil, Paint, And Drug Reporter." This NBER data series m04081ba appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04081ba

This Series Is A Complete Survey Of Cottonseed Oil Mills. Data Were Computed By The Bureau Of The Census According To The Act Of Congress Of August 7, 1916. Data In The Source Were Cumulative From August 1 To July 31 Of The Following Year. The Data Were Converted By NBER Into Monthly Data. Source: U.S. Bureau Of The Census, "Cotton Production And Distribution, 135 And Following Issues.; Also, Survey Of Current Business. This NBER data series m01220 appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html. NBER Indicator: m01220

Through The 1939-1940 Season, Cumulative Figures Are Shown; Beginning With The 1941 Season, Figures Are Published Monthly. Source: 1916-1922 Data Are From Cotton Production And Distribution; 1923-1930 Data Are From Survey Of Current Business Annual Supplement, 1932 Pp.136-137; 1931 Data Are From Scb, February 1935, P.20; 1932-1941 Data Are From Successive Supplements; Following Years Are From The United States Bureau Of The Census, "Cotton Production And Distribution, " Bulletin Nos. 178-190; Facts For Industry, Series M17-1; Annual Issues Of Animal And Vegetable Fats And Oils; Monthly Issues Of Fats And Oils. This NBER data series m01081 appears on the NBER website in Chapter 1 at http://www.nber.org/databases/macrohistory/contents/chapter01.html. NBER Indicator: m01081

Series Is Presented Here As Two Variables--(1)--Original Data, 1917-1955 (2)--Original, 1952-1955. Beginning In July 1949 About 1000 Small Producers And Consumers Were Excused From Filing Monthly Reports, Filing Instead On An Annual Basis. The Number Of Such Respondents Has Been Increased To About 1500 Since 1949. Their Elimination Had No Signifigant Effect On The Data. For Items Affected By More Than 1 Per Cent, Figures Are Adjusted To An Estimated 100% In The Monthly Publications, On Basis Of Past Records Of Those Plants. They Are Then Revised In The Annual Summaries On The Basis Of The Figures Reported Annually (See Footnotes In The Introduction To The Various M 17-1 Issues, 1949 And Following.) Source: U.S. Bureau Of The Census, Data For 1917-July 1951: Annual Bulletins On"Cotton Production And Distributions, " Nos. 135-180 (July 31, 1951); Data For August 1951-1955: Facts For Industry Series M-17, "Animal And Vegetable Fats And Oils, " 1951, 1952, 1953 And 1954 (Series M-17-01,-02,-03,-04) And Monthly Preliminary "Fats And Oils"; Data Were Checked With The Survey Of Current Business This NBER data series m05044a appears on the NBER website in Chapter 5 at http://www.nber.org/databases/macrohistory/contents/chapter05.html. NBER Indicator: m05044a

Data Cover Stocks At Cottonseed Oil Mills, Refineries And Consuming Etablishments, And In Transit To Refineries And Consumers. Beginning In July 1949 About 1000 Small Producers And Consumers Were Excused From Filing Monthly Reports. They Filed Instead On An Annual Basis. Their Number Increased To About 1500 Since 1949, But Their Elimination Had No Significant Effect On The Data. For Items Affected By More Than One Per Cent, Figures Were Adjusted To An Estimated 100 Per Cent In The Monthly Publications, On The Basis Of Past Records Of Those Plants. They Were Revised In The Annual Summaries On The Basis Of The Figures Reported Annually. Source: U.S. Bureau Of The Census, Data For 1917-July 1951: "Cotton Production And Distribution, " Bulletin No. 135, P. 100, And Later Bulletins Through No. 188; Data For August 1951-1955: Facts From Industry, "Animal And Vegetable Fats And Oils, " Series M 17-1-01,-02,-03,-04 This NBER data series m05045 appears on the NBER website in Chapter 5 at http://www.nber.org/databases/macrohistory/contents/chapter05.html. NBER Indicator: m05045

Series Is Presented Here As Two Variables-- (1)--Original Data, 1890-1952 (2)--Original Data, 1952-1958. Additionally, Series 04081B Is Comprised Of By Original Data For Crude Cottonseed Oil For 1909-1941. For 1890-1917, Prices On First Saturday Of Each Month. For 1918-1957, Average Of Weekly Quotations From Oil, Paint, And Drug Reporter. For 1890-1913, Called Linseed Oil, Raw, City, Barrels. For 1913-1916, Raw, In Barrels. For 1917-1935, Linseed Oil, Raw. Beginning In 1927, The Series Was Converted From Pounds To Gallons By Multiplying By 7.5 (1926 Given In Both Pounds And Gallons). There Was A Slight Discrepancy Between Data Per Gallon As Given And Computed Data. In 1947, Bls Code Number 06-22-36 Replaces Old Number 552. Series Ends On This Basis Following May, 1952. Source: Bls Bulletin No. 39 (Pp. 418-419) For 1890-1901; Nos. 45, 51, 57, 63, 69, 75, 81, 87, 93, 99, 114, 149, 181, 200, 226, 269, 296, 335, 367, 415, 440, 473, 493, 521, 543, 572; 1932-June, 1935 Monthly Bulletins, "Wholesale Prices." For 1942 On: Bls Bulletin Nos. 718, 736, 759, 785, 870, 877, And 920 For 1942-1946, And 1143 For 1951 On. Bls, Prices And Price Relatives For Individual Commodities In The Revised Index: 1947-1950, Group 6--Chemicals And Allied Products, For 1947-1950; Monthly Wholesale Prices For 1952. This NBER data series q04081 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: q04081

This Series Consists Of Prices For Cylinder Oil, Pennsylvania Refineries, 600 Flash, Steam Refined, Filtered. No Quotation For July, 1926. Annual Figure Is The Sum Of 11 Months. Source: For 1918-1925, Directly From Bls; 1926-1940, Bls Bulletins And "Wholesale Prices." This NBER data series m04162 appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04162

Data Cover Entire Output. For 1918, Monthly Figures Also Available: Jan. 29.1, Feb. 26.7, Mar. 33.6, Apr. 34.0, May 36.1, June 36.5, July 28.8, Aug. 28.0, Sep. 27.2, Oct. 33.2, Nov. 31.0, Dec. 31.2 Source: 1918: U.S. Department Of Agriculture Bulletin 769 Supplement, P. 4; 1919-42: Bureau Of The Census Bulletins, "Animal And Vegetable Fats And Oils;" 1942-62: "Survey Of Current Business, 1947 Supplement" And Later Monthly Issues (Facts For Industry, Series M-17-1, Fats And Oils) And Annual Issues (Animal And Vegetable Fats And Oils). This NBER data series q02132 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: q02132

Data Cover Entire Output. For 1918, Monthly Figures Also Available: Jan. 29.1, Feb. 26.7, Mar. 33.6, Apr. 34.0, May 36.1, June 36.5, July 28.8, Aug. 28.0, Sep. 27.2, Oct. 33.2, Nov. 31.0, Dec. 31.2 Source: 1918: U.S. Department Of Agriculture Bulletin 769 Supplement, P. 4; 1919-42: Bureau Of The Census Bulletins, "Animal And Vegetable Fats And Oils;" 1942-62: "Survey Of Current Business, 1947 Supplement" And Later Monthly Issues (Facts For Industry, Series M-17-1, Fats And Oils) And Annual Issues (Animal And Vegetable Fats And Oils). This NBER data series m02132 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: m02132

Series Is Presented Here As Two Variables--(1)--Original Data, 1919-1942 (2)--Original Data, 1942-1955. Source: U.S. Bureau Of The Census, "Animal And Vegetable Fats And Oils" (Data Were Checked Against Quartely Averages Each Year In Suvery Of Current Business 1938 Supplement, P. 97 And Agree Exactly Throughout) This NBER data series q05042 appears on the NBER website in Chapter 5 at http://www.nber.org/databases/macrohistory/contents/chapter05.html. NBER Indicator: q05042

explanatory notes (https://www.federalreserve.gov/releases/g17/About.htm) issued by the Board of Governors. For recent updates, see the announcements (https://www.federalreserve.gov/feeds/g17.html) issued by the Board of Governors.</p>

Source: Compiled By NBER: Stock At Beginning Of Period + Production During Period - Stock At End Of Period. This NBER data series q02157 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: q02157

Data Are Averages Of Weekly Averages Of Daily Quotations As Reported By The Bureau Of Agricultural Field Men. Quoted As "Lard Substitutes", Data Represents Refined Deodorized Cottonseed Oil Combined With Beef Stearines As Follows: 15-20% Oleostearine; 80-85% Refined Cottonseed Oil. Data From 1920-1926 Is Quoted In Tierces; Data From 1927-1936 Is Quoted In Hardwood Tubs. Source: Bureau Of Agricultural Economics, Division Of Livestock, Meats, And Wool, 1920-1938: Mimeo- Graphed Table Sent To NBER; 1939-1941: "Agricultural Statistics", 1942; 1942-1944: "The Fats And Oil Situation" This NBER data series m04122b appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04122b

BEA Account Code: B4310C For more information about this series, please see http://www.bea.gov/national/.

BEA Account Code: DFULRG For more information about this series, please see http://www.bea.gov/national/.

BEA Account Code: DFULRC For more information about this series, please see http://www.bea.gov/national/.

BEA Account Code: B270RG For more information about this series, please see http://www.bea.gov/national/.

BEA Account Code: DFULRA For more information about this series, please see http://www.bea.gov/national/.

BEA Account Code: C270RC For more information about this series, please see http://www.bea.gov/national/.

BEA Account Code: B270RA For more information about this series, please see http://www.bea.gov/national/.

BEA Account Code: C270RW For more information about this series, please see http://www.bea.gov/national/.

BEA Account Code: C270RL A Guide to the National Income and Product Accounts of the United States (NIPA) - (http://www.bea.gov/national/pdf/nipaguid.pdf)

This Variable Represents The First Segment Of This Series. For Further Information, See Introductory Notes On Bls-Department Of Commerce Data. This Series Is The Sum Of (Total New Construction) And (Expenditures For Petroleum And Natural Gas Well Drilling). Source: Publications Of Business And Defense Services Administration & Bureau Of Labor Statistics (See Introductory Note On Bls-Dept. Of Commerce Series) This NBER data series a02260a appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: a02260a

Series Is Presented Here As Two Variables--(1)--Original Data, 1919-1942 (2)--Original Data, 1942-1955. Beginning In 1949, Stocks Represent Crude Oil Only. Prior To 1949 Some Refined Oil May Have Been Included (See Scb, 1953 Supplement, P. 253; And Annual Issues Of Source, 1949 And Following, For A Note On Elimination Of Small Producers And Consumers.) Source: U.S. Department Of Commerce, Data For 1942-1945: Survey Of Current Business, 1947 Supplement; Data For 1946-1955: U.S. Bureau Of The Census, Facts For Industry, Series M-17-1, "Fats And Oils, " Monthly, And "Animal And Vegetable Fats And Oils, " Annual This NBER data series m05042 appears on the NBER website in Chapter 5 at http://www.nber.org/databases/macrohistory/contents/chapter05.html. NBER Indicator: m05042

Source: Compiled By NBER: Stock At Beginning Of Period + Production During Period - Stock At End Of Period. This NBER data series m02157 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: m02157

Source: Bureau Of The Census Publications (See Introductory Note On Bls-Dept. Of Commerce Series) This NBER data series a02260b appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: a02260b

Prior to 1982 equals the posted price. On August 5, 2013, the Wall Street Journal discontinued publication of some of its commodity energy prices. As a current substitute, see the monthly oil spot prices reported by the U.S. Department of Energy, Energy Information Administration at https://fred.stlouisfed.org/series/MCOILWTICO Copyright, 2016, Dow Jones & Company

Source ID: FU215400003.A For more information about the Flow of Funds tables, see the Financial Accounts Guide (https://www.federalreserve.gov/apps/fof/Default.aspx). With each quarterly release, the source may make major data and structural revisions to the series and tables. These changes are available in the Release Highlights (https://www.federalreserve.gov/apps/fof/FOFHighlight.aspx). In the Financial Accounts, the source identifies each series by a string of patterned letters and numbers. For a detailed description, including how this series is constructed, see the series analyzer (https://www.federalreserve.gov/apps/fof/SeriesAnalyzer.aspx?s=FU215400003&t=) provided by the source.

BEA Account Code: B682RG For more information about this series, please see http://www.bea.gov/national/.

Source ID: FA215400003.A For more information about the Flow of Funds tables, see the Financial Accounts Guide (https://www.federalreserve.gov/apps/fof/Default.aspx). With each quarterly release, the source may make major data and structural revisions to the series and tables. These changes are available in the Release Highlights (https://www.federalreserve.gov/apps/fof/FOFHighlight.aspx). In the Financial Accounts, the source identifies each series by a string of patterned letters and numbers. For a detailed description, including how this series is constructed, see the series analyzer (https://www.federalreserve.gov/apps/fof/SeriesAnalyzer.aspx?s=FA215400003&t=) provided by the source.

BEA Account Code: A682RC For more information about this series, please see http://www.bea.gov/national/.

This series was created by the Federal Reserve Bank of St. Louis to expand the history of the monthly West Texas Intermediate oil price series in FRED. We simply combined these two FRED series: https://fred.stlouisfed.org/series/OILPRICE and https://fred.stlouisfed.org/series/MCOILWTICO. From January 1946 through July 2013, the series used is OILPRICE. From August 2013 to present, the series used is MCOILWTICO.

BEA Account Code: B682RA For more information about this series, please see http://www.bea.gov/national/.

Source ID: FU215400003.Q For more information about the Flow of Funds tables, see the Financial Accounts Guide (https://www.federalreserve.gov/apps/fof/Default.aspx). With each quarterly release, the source may make major data and structural revisions to the series and tables. These changes are available in the Release Highlights (https://www.federalreserve.gov/apps/fof/FOFHighlight.aspx). In the Financial Accounts, the source identifies each series by a string of patterned letters and numbers. For a detailed description, including how this series is constructed, see the series analyzer (https://www.federalreserve.gov/apps/fof/SeriesAnalyzer.aspx?s=FU215400003&t=) provided by the source.

Source ID: FA215400003.Q For more information about the Flow of Funds tables, see the Financial Accounts Guide (https://www.federalreserve.gov/apps/fof/Default.aspx). With each quarterly release, the source may make major data and structural revisions to the series and tables. These changes are available in the Release Highlights (https://www.federalreserve.gov/apps/fof/FOFHighlight.aspx). In the Financial Accounts, the source identifies each series by a string of patterned letters and numbers. For a detailed description, including how this series is constructed, see the series analyzer (https://www.federalreserve.gov/apps/fof/SeriesAnalyzer.aspx?s=FA215400003&t=) provided by the source.