Year	Number
1960	3171642
1961	3281143
1962	3403902
1963	3535809
1964	3672093
1965	3813372
1966	3960285
1967	4111254
1968	4264256
1969	4416447
1970	4568249
1971	4734246
1972	4917145
1973	5107153
1974	5304327
1975	5509222
1976	5719270
1977	5933512
1978	6151691
1979	6369541
1980	6573675
1981	6761384
1982	6946838
1983	7137104
1984	7335317
1985	7546864
1986	7777001
1987	8026620
1988	8292822
1989	8573213
1990	8861225
1991	9157004
1992	9465517
1993	9788522
1994	10131856
1995	10485394
1996	10842443
1997	11206929
1998	11577938
1999	11956863
2000	12340476
2001	12733232
2002	13142249
2003	13566016
2004	14006285
2005	14465922
2006	14943823
2007	15429906
2008	15924582
2009	16434173
2010	16931680
2011	17471985
2012	18056103
2013	18675218
2014	19348546
2015	20063775
2016	20794925
2017	21563828
2018	22384271
2019	23206136
2020	23922175
2021	24531203
2022	25228532
2023	26135027