Year	Number
1960	137486
1961	151339
1962	166609
1963	183421
1964	201955
1965	222304
1966	244735
1967	269430
1968	296655
1969	326546
1970	339836
1971	350668
1972	361862
1973	373380
1974	385281
1975	397562
1976	410253
1977	423311
1978	436804
1979	450728
1980	468589
1981	491444
1982	515448
1983	540624
1984	567067
1985	594725
1986	623773
1987	654240
1988	686240
1989	719711
1990	754863
1991	792274
1992	832239
1993	874101
1994	918131
1995	964379
1996	1013026
1997	1063982
1998	1117577
1999	1173872
2000	1233086
2001	1295111
2002	1360348
2003	1428872
2004	1500949
2005	1576448
2006	1655857
2007	1739266
2008	1827000
2009	1918900
2010	2015559
2011	2117087
2012	2223879
2013	2335743
2014	2453399
2015	2576982
2016	2706790
2017	2843137
2018	2986352
2019	3137690
2020	3298364
2021	3469510
2022	3651919
2023	3846102