Year	Number
1960	16721143
1961	16721151
1962	16721151
1963	16721151
1964	16721151
1965	24706579
1966	24706584
1967	24706584
1968	24706584
1969	24706584
1970	36638821
1971	36638817
1972	36638817
1973	36638817
1974	36638817
1975	55202871
1976	60326168
1977	66113127
1978	72281407
1979	80536246
1980	86979514
1981	92906790
1982	97990095
1983	103082899
1984	108081076
1985	113083129
1986	117515934
1987	122274160
1988	127710249
1989	133914629
1990	142429053
1991	148716928
1992	155150593
1993	160770854
1994	167099960
1995	174761195
1996	181382413
1997	188142856
1998	194476135
1999	199400273
2000	204877925
2001	206487098
2002	207636132
2003	207063030
2004	206333177
2005	205124144
2006	205322851
2007	198014611
2008	193852925
2009	202240094
2010	198822433
2011	194641974
2012	189549901
2013	187696435
2014	185464047
2015	181611291
2016	179330821
2017	176222024
2018	170787408
2019	162558808
2020	160059117
2021	158903699
2022	155004603