Year	Number
1960	3886154
1961	3996507
1962	4112817
1963	4233603
1964	4363247
1965	4504080
1966	4650304
1967	4801917
1968	4960399
1969	5124817
1970	5296213
1971	5471459
1972	5652452
1973	5843424
1974	6041020
1975	6243810
1976	6449516
1977	6664743
1978	6891781
1979	7124520
1980	7364621
1981	7607421
1982	7850629
1983	8097627
1984	8343116
1985	8579815
1986	8808341
1987	9032005
1988	9254660
1989	9478698
1990	9705940
1991	9930795
1992	10156831
1993	10392144
1994	10636784
1995	10885953
1996	11135777
1997	11390299
1998	11646724
1999	11902674
2000	12159621
2001	12419686
2002	12684170
2003	12950963
2004	13220250
2005	13489811
2006	13758026
2007	14023830
2008	14282317
2009	14538156
2010	14794072
2011	15042735
2012	15279181
2013	15504474
2014	15716975
2015	15922523
2016	16149786
2017	16464607
2018	16856472
2019	17230258
2020	17526007
2021	17749414
2022	17865331
2023	17903743