Year	Number of People
1800	12100000
1820	12100000
1921	18630000
1931	19160000
1950	37860000
1951	38510000
1952	39200000
1953	39940000
1954	40700000
1955	41500000
1956	42330000
1957	43180000
1958	44060000
1959	44980000
1960	45930000
1961	46910000
1962	47940000
1963	48990000
1964	50080000
1965	51200000
1966	52340000
1967	53520000
1968	54750000
1969	56020000
1970	57360000
1971	58750000
1972	60190000
1973	61720000
1974	63360000
1975	65140000
1976	67070000
1977	69130000
1978	71270000
1979	73420000
1980	75540000
1981	77600000
1982	79620000
1983	81640000
1984	83690000
1985	85830000
1986	88060000
1987	90360000
1988	92730000
1989	95130000
1990	97550000
1991	99990000
1992	102400000
1993	104900000
1994	107500000
1995	110000000
1996	112600000
1997	115300000
1998	118000000
1999	120800000
2000	123700000
2001	126700000
2002	129800000
2003	133100000
2004	136400000
2005	139800000
2006	143300000
2007	147000000
2008	150700000
2009	154500000
2010	158400000
2011	162500000
2012	166600000
2013	170900000
2050	389600000
2100	729900000