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Line 1 - Federal Debt Held by the Public as Percent of Gross Domestic Product
Line 1
(a) Federal Debt Held by the Public as Percent of Gross Domestic Product, Percent of GDP, Seasonally Adjusted (FYGFGDQ188S)
Federal Debt Held by the Public as Percent of Gross Domestic Product (FYGFGDQ188S) (https://fred.stlouisfed.org/series/FYGFGDQ188S) was first constructed by the Federal Reserve Bank of St. Louis in October 2012. It is calculated using Federal Debt Held by the Public (FYGFDPUN) (https://fred.stlouisfed.org/series/FYGFDPUN) and Gross Domestic Product, 1 Decimal (GDP) (https://fred.stlouisfed.org/series/GDP): FYGFGDQ188S = ((FYGFDPUN/1000)/GDP)*100 FYGFDPUN/1000 transforms FYGFDPUN from millions of dollars to billions of dollars.

Select a date that will equal 100 for your custom index:
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Write a custom formula to transform one or more series or combine two or more series.

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    Now create a custom formula to combine or transform the series.

    For example, invert an exchange rate by using formula 1/a, where “a” refers to the first FRED data series added to this line. Or calculate the spread between 2 interest rates, a and b, by using the formula a - b.

    Use the assigned data series variables (a, b, c, etc.) together with operators (+, -, *, /, ^, etc.), parentheses and constants (1, 1.5, 2, etc.) to create your own formula (e.g., 1/a, a-b, (a+b)/2, (a/(a+b+c))*100). As noted above, you may add other data series to this line before entering a formula.

    Finally, you can change the units of your new series.

    Select a date that will equal 100 for your custom index:
        Enter date as YYYY-MM-DD

    Line 1 - Federal Debt Held by the Public as Percent of Gross Domestic Product
    Line 2
    (a) Market Yield on U.S. Treasury Securities at 10-Year Constant Maturity, Quoted on an Investment Basis, Percent, Not Seasonally Adjusted (DGS10)
    H.15 Statistical Release (https://www.federalreserve.gov/releases/h15/current/h15.pdf) notes and Treasury Yield Curve Methodology (https://www.treasury.gov/resource-center/data-chart-center/interest-rates/Pages/yieldmethod.aspx). For questions on the data, please contact the data source (https://www.federalreserve.gov/apps/ContactUs/feedback.aspx?refurl=/releases/h15/%). For questions on FRED functionality, please contact us here (https://fred.stlouisfed.org/contactus/).</p>

    Select a date that will equal 100 for your custom index:
      Enter date as YYYY-MM-DD
    to

    Write a custom formula to transform one or more series or combine two or more series.

    You can begin by adding a series to combine with your existing series.

    Type keywords to search for data

      Now create a custom formula to combine or transform the series.

      For example, invert an exchange rate by using formula 1/a, where “a” refers to the first FRED data series added to this line. Or calculate the spread between 2 interest rates, a and b, by using the formula a - b.

      Use the assigned data series variables (a, b, c, etc.) together with operators (+, -, *, /, ^, etc.), parentheses and constants (1, 1.5, 2, etc.) to create your own formula (e.g., 1/a, a-b, (a+b)/2, (a/(a+b+c))*100). As noted above, you may add other data series to this line before entering a formula.

      Finally, you can change the units of your new series.

      Select a date that will equal 100 for your custom index:
          Enter date as YYYY-MM-DD

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      Line 1
      Federal Debt Held by the Public as Percent of Gross Domestic Product
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      Line 2
      Market Yield on U.S. Treasury Securities at 10-Year Constant Maturity, Quoted on an Investment Basis
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      Notes

      Federal Debt Held by the Public as Percent of Gross Domestic Product  (FYGFGDQ188S)

      Source: U.S. Office of Management and Budget  

      Source: Federal Reserve Bank of St. Louis  

      Release: Debt to Gross Domestic Product Ratios

      Units:  Percent of GDP, Seasonally Adjusted

      Frequency:  Quarterly

      Notes:

      Federal Debt Held by the Public as Percent of Gross Domestic Product (FYGFGDQ188S) was first constructed by the Federal Reserve Bank of St. Louis in October 2012. It is calculated using Federal Debt Held by the Public (FYGFDPUN) and Gross Domestic Product, 1 Decimal (GDP):
      FYGFGDQ188S = ((FYGFDPUN/1000)/GDP)*100
      FYGFDPUN/1000 transforms FYGFDPUN from millions of dollars to billions of dollars.

      Suggested Citation:

      U.S. Office of Management and Budget and Federal Reserve Bank of St. Louis, Federal Debt Held by the Public as Percent of Gross Domestic Product [FYGFGDQ188S], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/FYGFGDQ188S, April 7, 2025.

      Market Yield on U.S. Treasury Securities at 10-Year Constant Maturity, Quoted on an Investment Basis  (DGS10)

      Source: Board of Governors of the Federal Reserve System (US)  

      Release: H.15 Selected Interest Rates  

      Units:  Percent, Not Seasonally Adjusted

      Frequency:  Daily

      Notes:

      For further information regarding treasury constant maturity data, please refer to the H.15 Statistical Release notes and Treasury Yield Curve Methodology.

      For questions on the data, please contact the data source. For questions on FRED functionality, please contact us here.

      Suggested Citation:

      Board of Governors of the Federal Reserve System (US), Market Yield on U.S. Treasury Securities at 10-Year Constant Maturity, Quoted on an Investment Basis [DGS10], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/DGS10, April 7, 2025.

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      H.15 Selected Interest Rates

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      Annual, Not Seasonally Adjusted Monthly, Not Seasonally Adjusted Weekly, Not Seasonally Adjusted

      Related Categories

      Federal Government Debt National Accounts Treasury Constant Maturity Interest Rates Money, Banking, & Finance

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      More Series from Debt to Gross Domestic Product Ratios More Series from H.15 Selected Interest Rates

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      U.S. Treasury: Financial Management Service Office of Management and Budget Public Debt Federal St. Louis Fed Bureau of Economic Analysis Gross Domestic Product Quarterly Seasonally Adjusted Nation Public Domain: Citation Requested United States of America 10-Year Maturity H.15 Selected Interest Rates Treasury Daily Interest Rate Interest Board of Governors Rate Not Seasonally Adjusted

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