Year Number of People 1800 534000 1820 534000 1850 1100000 1870 1796000 1890 3376000 1900 4693000 1901 4873000 1902 5060000 1903 5254000 1904 5455000 1905 5664000 1906 5881000 1907 6107000 1908 6341000 1909 6584000 1910 6836000 1911 7098000 1912 7370000 1913 7653000 1914 7885000 1915 8072000 1916 8226000 1917 8374000 1918 8518000 1919 8672000 1920 8861000 1921 9092000 1922 9368000 1923 9707000 1924 10050000 1925 10360000 1926 10650000 1927 10960000 1928 11280000 1929 11590000 1930 11900000 1931 12170000 1932 12400000 1933 12620000 1934 12830000 1935 13040000 1936 13260000 1937 13490000 1938 13720000 1939 13980000 1940 14170000 1941 14400000 1942 14640000 1943 14880000 1944 15130000 1945 15390000 1946 15650000 1947 15940000 1948 16310000 1949 16740000 1950 17150000 1951 17510000 1952 17870000 1953 18220000 1954 18580000 1955 18930000 1956 19280000 1957 19620000 1958 19960000 1959 20290000 1960 20630000 1961 20960000 1962 21300000 1963 21630000 1964 21970000 1965 22300000 1966 22620000 1967 22940000 1968 23270000 1969 23620000 1970 23980000 1971 24380000 1972 24790000 1973 25220000 1974 25650000 1975 26080000 1976 26490000 1977 26900000 1978 27300000 1979 27710000 1980 28130000 1981 28560000 1982 29000000 1983 29450000 1984 29900000 1985 30350000 1986 30810000 1987 31270000 1988 31730000 1989 32190000 1990 32640000 1991 33090000 1992 33540000 1993 33980000 1994 34420000 1995 34860000 1996 35290000 1997 35710000 1998 36130000 1999 36540000 2000 36930000 2001 37300000 2002 37660000 2003 38000000 2004 38340000 2005 38680000 2006 39020000 2007 39370000 2008 39710000 2009 40060000 2010 40410000 2011 40760000 2012 41120000 2013 41470000 2050 50560000 2100 49200000