Year	Number
1960	3462116
1961	3541732
1962	3624774
1963	3710861
1964	3798824
1965	3888404
1966	3980471
1967	4070277
1968	4161021
1969	4252334
1970	4345181
1971	4441570
1972	4542342
1973	4648001
1974	4759197
1975	4876866
1976	5002352
1977	5140665
1978	5307161
1979	5496104
1980	5700172
1981	5915953
1982	6141123
1983	6373378
1984	6610166
1985	6850141
1986	7087198
1987	7413216
1988	7797533
1989	8143362
1990	8436880
1991	8663100
1992	8879518
1993	8969130
1994	8824088
1995	8771553
1996	8905306
1997	9040693
1998	9188700
1999	9380318
2000	9588774
2001	9808722
2002	10042042
2003	10289880
2004	10554109
2005	10835413
2006	11131671
2007	11439429
2008	11760730
2009	12092750
2010	12430590
2011	12772398
2012	13117544
2013	13466259
2014	13819741
2015	14175692
2016	14532652
2017	14892509
2018	15256915
2019	15627061
2020	16000221
2021	16370252
2022	16736441
2023	17105427