Year	Number
1960	4493182
1961	4681086
1962	4878624
1963	5084497
1964	5299360
1965	5522674
1966	5865661
1967	6262294
1968	6686349
1969	7137833
1970	7620490
1971	8004335
1972	8380067.999999999
1973	8772332
1974	9183536
1975	9614016
1976	10065309
1977	10536457
1978	11030355
1979	11547405
1980	12089454
1981	12383528
1982	12628957
1983	12879250
1984	13134858
1985	13394815
1986	13660287
1987	13931020
1988	14207502
1989	14488689
1990	14775840
1991	15068681
1992	15288036
1993	15493544
1994	15702105
1995	15913473
1996	16127983
1997	16344782
1998	16564802
1999	16787782
2000	17014078
2001	17260029
2002	17511506
2003	17766646
2004	18025864
2005	18288134
2006	18554591
2007	18824929
2008	19099587
2009	19377480
2010	19659808
2011	19901875
2012	20143093
2013	20386559
2014	20633309
2015	20883046
2016	21136155
2017	21391624
2018	21650181
2019	21846507
2020	22043028
2021	22237472
2022	22429799
2023	22619736