Year Number of People 1600 5000000 1700 6000000 1800 9509000 1820 10430000 1850 13000000 1870 16860000 1890 22850000 1900 24750000 1910 26640000 1913 26710000 1920 23970000 1921 24330000 1922 24940000 1923 25570000 1924 25990000 1925 26420000 1926 26820000 1927 27150000 1928 27510000 1929 27860000 1930 28200000 1931 28620000 1932 29020000 1933 29420000 1934 29770000 1935 30130000 1936 30470000 1937 30790000 1938 31060000 1939 31360000 1940 30020000 1946 23960000 1947 23730000 1948 23980000 1949 24410000 1950 24820000 1951 25380000 1952 25920000 1953 26420000 1954 26870000 1955 27280000 1956 27650000 1957 27990000 1958 28320000 1959 28670000 1960 29030000 1961 29440000 1962 29870000 1963 30320000 1964 30740000 1965 31120000 1966 31450000 1967 31740000 1968 32010000 1969 32270000 1970 32530000 1971 32800000 1972 33080000 1973 33370000 1974 33670000 1975 33970000 1976 34280000 1977 34590000 1978 34910000 1979 35240000 1980 35580000 1981 35920000 1982 36270000 1983 36610000 1984 36920000 1985 37200000 1986 37440000 1987 37630000 1988 37800000 1989 37940000 1990 38060000 1991 38160000 1992 38250000 1993 38320000 1994 38360000 1995 38390000 1996 38400000 1997 38390000 1998 38370000 1999 38340000 2000 38300000 2001 38270000 2002 38230000 2003 38200000 2004 38180000 2005 38170000 2006 38170000 2007 38190000 2008 38220000 2009 38250000 2010 38280000 2011 38300000 2012 38320000 2013 38330000 2050 34910000 2100 29450000