Year	Number
1960	2031108
1961	2114517
1962	2176403
1963	2240102
1964	2305756
1965	2373145
1966	2441566
1967	2500090
1968	2560101
1969	2621381
1970	2684215
1971	2744174
1972	2755944
1973	2767733
1974	2779588
1975	2791494
1976	2807079
1977	2855955
1978	2905750
1979	2956414
1980	3008032
1981	3061725
1982	3132656
1983	3205229
1984	3279588
1985	3355459
1986	3433952
1987	3523629
1988	3615776
1989	3710070
1990	3806957
1991	3904154
1992	3975528
1993	4048005
1994	4121907
1995	4197157
1996	4274256
1997	4355039
1998	4437464
1999	4521449
2000	4607142
2001	4693504
2002	4776698
2003	4861366
2004	4947655
2005	5035232
2006	5124530
2007	5215742
2008	5308706
2009	5403064
2010	5499233
2011	5592607
2012	5660142
2013	5728303
2014	5797381
2015	5867292
2016	5938144
2017	6009852
2018	6082425
2019	6139404
2020	6196731
2021	6254571
2022	6312974
2023	6371958