Year	Number
1960	2338145
1961	2412005
1962	2487415
1963	2572847
1964	2665534
1965	2756225
1966	2859367
1967	2975412
1968	3081512
1969	3177108
1970	3261699
1971	3383938
1972	3500923
1973	3630347
1974	3758140
1975	3892347
1976	4025454
1977	4164732
1978	4308904
1979	4455739
1980	4596741
1981	4729808
1982	4862013
1983	4982713
1984	5094591
1985	5226478
1986	5371173
1987	5524804
1988	5699919
1989	5916318
1990	6178678
1991	6480776
1992	6797432
1993	7111474
1994	7427822
1995	7744735
1996	8074653
1997	8420731
1998	8771140
1999	9110380
2000	9459018
2001	9839419
2002	10216368
2003	10553542
2004	10840802
2005	11156921
2006	11546648
2007	11961367
2008	12341329
2009	12679250
2010	12931023
2011	13126514
2012	13512146
2013	14062619
2014	14618280
2015	15087132
2016	15447380
2017	15737035
2018	15968584
2019	16161603
2020	16288569
2021	16329904
2022	16333009
2023	16333021