Year	Number
1960	4165563
1961	4306048
1962	4458516
1963	4621655
1964	4795130
1965	4978922
1966	5173237
1967	5381026
1968	5604582
1969	5844843
1970	6106191
1971	6396658
1972	6724260
1973	7088758
1974	7483506
1975	7897544
1976	8319556
1977	8755219
1978	9210564
1979	9682002
1980	10171710
1981	10678211
1982	11201154
1983	11746020
1984	12310361
1985	12890245
1986	13483349
1987	14089798
1988	14713715
1989	15353227
1990	16004763
1991	16654276
1992	17281350
1993	17846461
1994	18367528
1995	18888857
1996	19410280
1997	19938377
1998	20472580
1999	21009660
2000	21547390
2001	22085929
2002	22623415
2003	23150847
2004	23661808
2005	24397644
2006	25382870
2007	26400068
2008	27437353
2009	28483797
2010	29411929
2011	30150945
2012	30821543
2013	31482498
2014	32125564
2015	32749848
2016	33416270
2017	34193122
2018	35018133
2019	35827362
2020	35997107
2021	35950396
2022	36408820
2023	36947025