Official US Census Estimate	

YEAR	number

1900	7.609E+07

1901	7.759E+07

1902	7.916E+07

1903	8.063E+07

1904	8.217E+07

1905	8.382E+07

1906	8.544E+07

1907	8.700E+07

1908	8.871E+07

1909	9.049E+07

1910	9.241E+07

1911	9.387E+07

1912	9.533E+07

1913	9.723E+07

1914	9.912E+07

1915	1.005E+08

1916	1.020E+08

1917	1.033E+08

1918	1.032E+08

1919	1.045E+08

1920	1.065E+08

1921	1.085E+08

1922	1.101E+08

1923	1.120E+08

1924	1.141E+08

1925	1.158E+08

1926	1.174E+08

1927	1.190E+08

1928	1.205E+08

1929	1.218E+08

1930	1.231E+08

1931	1.240E+08

1932	1.248E+08

1933	1.256E+08

1934	1.264E+08

1935	1.273E+08

1936	1.281E+08

1937	1.288E+08

1938	1.298E+08

1939	1.309E+08

1940	1.320E+08

1941	1.331E+08

1942	1.339E+08

1943	1.342E+08

1944	1.329E+08

1945	1.325E+08

1946	1.401E+08

1947	1.434E+08

1948	1.461E+08

1949	1.487E+08

1950	1.519E+08

1951	1.540E+08

1952	1.564E+08

1953	1.590E+08

1954	1.619E+08

1955	1.651E+08

1956	1.681E+08

1957	1.712E+08

1958	1.741E+08

1959	1.771E+08

1960	1.800E+08

1961	1.830E+08

1962	1.857E+08

1963	1.884E+08

1964	1.911E+08

1965	1.935E+08

1966	1.955E+08

1967	1.974E+08

1968	1.993E+08

1969	2.013E+08

1970	2.068E+08

1971	2.093E+08

1972	2.114E+08

1973	2.133E+08

1974	2.155E+08

1975	2.176E+08

1976	2.198E+08

1977	2.221E+08

1978	2.246E+08

1979	2.295E+08

1980	2.317E+08

1981	2.338E+08

1982	2.358E+08

1983	2.379E+08

1984	2.401E+08

1985	2.423E+08

1986	2.445E+08

1987	2.468E+08

1988	2.495E+08

1989	2.522E+08

1990	2.550E+08

1991	2.578E+08

1992	2.603E+08

1993	2.628E+08

1994	2.652E+08

1995	2.678E+08

1996	2.702E+08

1997	2.727E+08

1998	2.821E+08

1999	2.848E+08