Year Number of People 1800 11220000 1820 11220000 1950 37300000 1951 37850000 1952 38410000 1953 38980000 1954 39540000 1955 40100000 1956 40650000 1957 41190000 1958 41720000 1959 42250000 1960 42780000 1961 43320000 1962 43850000 1963 44370000 1964 44870000 1965 45340000 1966 45780000 1967 46190000 1968 46570000 1969 46950000 1970 47320000 1971 47690000 1972 48050000 1973 48400000 1974 48730000 1975 49020000 1976 49270000 1977 49480000 1978 49680000 1979 49860000 1980 50040000 1981 50230000 1982 50410000 1983 50590000 1984 50770000 1985 50950000 1986 51130000 1987 51300000 1988 51460000 1989 51570000 1990 51640000 1991 51670000 1992 51640000 1993 51550000 1994 51380000 1995 51120000 1996 50770000 1997 50340000 1998 49860000 1999 49370000 2000 48890000 2001 48450000 2002 48030000 2003 47640000 2004 47280000 2005 46920000 2006 46590000 2007 46280000 2008 45990000 2009 45720000 2010 45450000 2011 45190000 2012 44940000 2013 44700000 2050 36070000 2100 30250000