Year Number of People 1800 3881000 1820 3881000 1850 4352000 1870 4698000 1890 5192000 1900 5283000 1913 5639000 1950 8231000 1951 8372000 1952 8513000 1953 8653000 1954 8796000 1955 8942000 1956 9092000 1957 9246000 1958 9405000 1959 9570000 1960 9740000 1961 9918000 1962 10100000 1963 10290000 1964 10500000 1965 10710000 1966 10930000 1967 11160000 1968 11400000 1969 11660000 1970 11920000 1971 12190000 1972 12470000 1973 12760000 1974 13060000 1975 13370000 1976 13690000 1977 14020000 1978 14350000 1979 14690000 1980 15050000 1981 15410000 1982 15770000 1983 16150000 1984 16540000 1985 16940000 1986 17340000 1987 17760000 1988 18180000 1989 18620000 1990 19080000 1991 19550000 1992 20040000 1993 20550000 1994 21060000 1995 21590000 1996 22140000 1997 22690000 1998 23260000 1999 23830000 2000 24400000 2001 24980000 2002 25560000 2003 26140000 2004 26720000 2005 27280000 2006 27830000 2007 28370000 2008 28910000 2009 29430000 2010 29960000 2011 30490000 2012 31010000 2013 31540000 2050 46500000 2100 44990000