Title: Diffusion Index, Manufacturers' Sales, 800 Concerns, Four Quarter Span for United States Series ID: Q1699AUSQ509NNBR Source: National Bureau of Economic Research Release: NBER Macrohistory Database (Not a Press Release) Seasonal Adjustment: Not Seasonally Adjusted Frequency: Quarterly Units: Percent Expanding Date Range: 1948-07-01 to 1958-10-01 Last Updated: 2012-08-20 9:31 AM CDT Notes: This Index Is Based On Reports Of A Sample Of Firms Ranging From 261 In February 1949 To 793 In April 1958. Source: G.H. Moore, Business Cycle Indicators, Vol. 2, NBER, P. 167 This NBER data series q16099a appears on the NBER website in Chapter 16 at http://www.nber.org/databases/macrohistory/contents/chapter16.html. NBER Indicator: q16099a DATE VALUE 1948-07-01 42 1948-10-01 45 1949-01-01 43 1949-04-01 51 1949-07-01 63 1949-10-01 70 1950-01-01 89 1950-04-01 89 1950-07-01 90 1950-10-01 82 1951-01-01 70 1951-04-01 69 1951-07-01 58 1951-10-01 62 1952-01-01 70 1952-04-01 . 1952-07-01 76 1952-10-01 78 1953-01-01 72 1953-04-01 61 1953-07-01 50 1953-10-01 50 1954-01-01 54 1954-04-01 62 1954-07-01 76 1954-10-01 82 1955-01-01 82 1955-04-01 84 1955-07-01 82 1955-10-01 80 1956-01-01 79 1956-04-01 74 1956-07-01 69 1956-10-01 69 1957-01-01 . 1957-04-01 52 1957-07-01 39 1957-10-01 48 1958-01-01 57 1958-04-01 66 1958-07-01 84 1958-10-01 88