Year	Number
1960	292622
1961	315553
1962	340315
1963	360798
1964	381625
1965	403591
1966	426854
1967	451458
1968	477518
1969	505003
1970	530741
1971	557165
1972	584943
1973	614024
1974	644594
1975	676686
1976	710423
1977	745742
1978	782870
1979	821846
1980	861661
1981	903076
1982	946544
1983	992103
1984	1039923
1985	1089907
1986	1142367
1987	1197352
1988	1255065
1989	1315390
1990	1380012
1991	1448047
1992	1519537
1993	1594345
1994	1672947
1995	1755424
1996	1842090
1997	1932778
1998	2028064
1999	2128049
2000	2213868
2001	2299455
2002	2388475
2003	2480942
2004	2577123
2005	2676753
2006	2780380
2007	2888019
2008	2999982
2009	3115959
2010	3236589
2011	3361889
2012	3492040
2013	3627229
2014	3767652
2015	3913512
2016	4065018
2017	4222389
2018	4385853
2019	4556381
2020	4734881
2021	4922192
2022	5118844
2023	5325160