Year	Number
1960	4743830
1961	4941057
1962	5134950
1963	5327901
1964	5501074
1965	5656844
1966	5816802
1967	5980384
1968	6145052
1969	6311566
1970	6479925
1971	6646429
1972	6807406
1973	6965659
1974	7130767
1975	7310487
1976	7514886
1977	7745347
1978	7998422
1979	8284700
1980	8601282
1981	8956631
1982	9339046
1983	9726139
1984	10125093
1985	10527750
1986	10923820
1987	11302549
1988	11654434
1989	11971745
1990	12282806
1991	12558142
1992	12737764
1993	12785554
1994	12717021
1995	12573386
1996	12354123
1997	12064235
1998	11722572
1999	11357193
2000	10982421
2001	10613028
2002	10230844
2003	9861620
2004	9538310
2005	9243862
2006	8974957
2007	8750859
2008	8597081
2009	8534642
2010	8563592
2011	8659032
2012	8821946
2013	9043650
2014	9388379
2015	9813925
2016	10133628
2017	10365579
2018	10564794
2019	10686261
2020	10729074
2021	10728510
2022	10696221
2023	10631040