Year	Number
1960	2852530
1961	2923176
1962	3003787
1963	3084758
1964	3165721
1965	3252751
1966	3343643
1967	3434688
1968	3526541
1969	3619301
1970	3714930
1971	3815898
1972	3928542
1973	4053416
1974	4184761
1975	4322882
1976	4468744
1977	4632933
1978	4819157
1979	5014099
1980	5159269
1981	5266612
1982	5381912
1983	5491613
1984	5601768
1985	5706652
1986	5798027
1987	5811513
1988	5790315
1989	5825351
1990	5898094
1991	5989433
1992	6083030
1993	6240939
1994	6542471
1995	6834391
1996	7042920
1997	7249859
1998	7453077
1999	7664017
2000	7882650
2001	8108487
2002	8341174
2003	8582895
2004	8830852
2005	9081557
2006	9336574
2007	9598270
2008	9874628
2009	10170860
2010	10483920
2011	10806316
2012	11128887
2013	11450576
2014	11764027
2015	12070045
2016	12382816
2017	12702008
2018	13022087
2019	13345103
2020	13675858
2021	14012754
2022	14348696
2023	14674522