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Source: National Bureau of Economic Research
Release: NBER Macrohistory Database
Units: Thousands, Not Seasonally Adjusted
Frequency: Annual, As of July 1
Bureau Of Census Figures Exclude Armed Forces Outside The Continental United States At Least For The Period 1940-1944. King'S Figures For 1917-1919 Evidently Include Armed Forces Outside The United States Based On Comparison With Census Figures. Source: For 1900-1908 Data: Wilford Isbell King'S Worksheet; For 1909 Data: King, The National Income And Its Purchasing Power (NBER), 1930, P. 47; For 1910-1944: Bureau Of The Census, Statistical Abstract Of The United States, 1944-1945, P. 8.
This NBER data series a08180 appears on the NBER website in Chapter 8 at http://www.nber.org/databases/macrohistory/contents/chapter08.html.
NBER Indicator: a08180
National Bureau of Economic Research, Total Population for United States [A08180USA173NNBR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/A08180USA173NNBR, .
Source: U.S. Census Bureau
Release: National Population Estimates
Units: Thousands, Not Seasonally Adjusted
Frequency: Monthly
The intercensal estimates for 1990-2000 for the United States population are produced by converting the 1990-2000 postcensal estimates prepared previously for the U. S. to account for differences between the postcensal estimates in 2000 and census counts (error of closure). The postcensal estimates for 1990 to 2000 were produced by updating the resident population enumerated in the 1990 census by estimates of the components of population change between April 1, 1990 and April 1, 2000-- births to U.S. resident women, deaths to U.S. residents, net international migration (incl legal & residual foreign born), and net movement of the U.S. armed forces and civilian citizens to the United States. Intercensal population estimates for 1990 to 2000 are derived from the postcensal estimates by distributing the error of closure over the decade by month. The method used for the 1990s for distributing the error of closure is the same that was used for the 1980s. This method produces an intercensal estimate as a function of time and the postcensal estimates,using the following formula: the population at time t is equal to the postcensal estimate at time t multiplied by a function. The function is the April 1, 2000 census count divided by the April 1, 2000 postcensal estimate raised to the power of t divided by 3653.
U.S. Census Bureau, Total Population: All Ages including Armed Forces Overseas [POP], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/POP, .