Year	Number
1960	8314521
1961	8475442
1962	8640533
1963	8801012
1964	8954489
1965	9118145
1966	9290387
1967	9468210
1968	9647638
1969	9826842
1970	10008213
1971	10188364
1972	10344385
1973	10495701
1974	10643600
1975	10791252
1976	10937126
1977	11087924
1978	11245649
1979	11404375
1980	11568957
1981	11736957
1982	11901589
1983	12059940
1984	12203927
1985	12333653
1986	12439780
1987	12520182
1988	12585433
1989	12637669
1990	12680751
1991	12714686
1992	12739963
1993	12756548
1994	12761465
1995	12849468
1996	12953625
1997	13054727
1998	13151647
1999	13241216
2000	13324918
2001	13405628
2002	13481766
2003	13550158
2004	13621824
2005	13641404
2006	13644846
2007	13643351
2008	13639110
2009	13633603
2010	13629400
2011	13628383
2012	13627029
2013	13622821
2014	13611765
2015	13591618
2016	13565447
2017	13533370
2018	13489703
2019	13434809
2020	13379661
2021	13323470
2022	13261620
2023	13198229