Year	Number
1960	2929489
1961	2947964
1962	2961986
1963	2973027
1964	2977902
1965	2979781
1966	2979149
1967	2974713
1968	2972783
1969	2984176
1970	3016293
1971	3078554
1972	3177354
1973	3297878
1974	3425952
1975	3557944
1976	3692342
1977	3834326
1978	3985406
1979	4141958
1980	4305938
1981	4475608
1982	4649566
1983	4827914
1984	5007427
1985	5186536
1986	5363036
1987	5533925
1988	5706137
1989	5885334
1990	6070230
1991	6259500
1992	6451763
1993	6645549
1994	6848699
1995	7072670
1996	7314252
1997	7568942
1998	7832100
1999	8101048
2000	8382476
2001	8678285
2002	8988627
2003	9317374
2004	9665698
2005	10028973
2006	10405837
2007	10798883
2008	11205663
2009	11626985
2010	12069114
2011	12532842
2012	13014212
2013	13510168
2014	14019670
2015	14540242
2016	15083377
2017	15651045
2018	16229250
2019	16823353
2020	17417386
2021	18020088
2022	18643225
2023	19283732