Year	Number
1960	2050961
1961	2118517
1962	2170106
1963	2222513
1964	2284616
1965	2340574
1966	2394753
1967	2443252
1968	2487265
1969	2529777
1970	2586439
1971	2665882
1972	2745165
1973	2822271
1974	2892038
1975	2952446
1976	3011670
1977	3072874
1978	3137001
1979	3196843
1980	3251327
1981	3310162
1982	3370646
1983	3432673
1984	3500598
1985	3568397
1986	3635448
1987	3705470
1988	3772840
1989	3825371
1990	3856598
1991	3885855
1992	3922231
1993	3959053
1994	3989328
1995	4011953
1996	4028686
1997	4043596
1998	4057628
1999	4085971
2000	4135854
2001	4184325
2002	4232008
2003	4280744
2004	4335079
2005	4396406
2006	4461940
2007	4530068
2008	4643726
2009	4759039
2010	4835557
2011	4920166
2012	5008847
2013	5098727
2014	5189181
2015	5279540
2016	5368846
2017	5453517
2018	5534464
2019	5616706
2020	5692217
2021	5755809
2022	5798042
2023	5822506