Year	Number
1960	5100164
1961	5202925
1962	5310110
1963	5420815
1964	5535685
1965	5655693
1966	5779467
1967	5907327
1968	6039743
1969	6175602
1970	6315266
1971	6456816
1972	6600369
1973	6747323
1974	6897703
1975	7052449
1976	7209462
1977	7374650
1978	7550471
1979	7731858
1980	7920157
1981	8112119
1982	8307692
1983	8512469
1984	8720141
1985	8924478
1986	9125435
1987	9319489
1988	9514748
1989	9727439
1990	9968610
1991	10233862
1992	10527373
1993	10814338
1994	11079433
1995	11332246
1996	11563404
1997	11786496
1998	12001525
1999	12206968
2000	12397651
2001	12576001
2002	12738215
2003	12880352
2004	13002461
2005	13098713
2006	13165531
2007	13208569
2008	13236099
2009	13250671
2010	13260079
2011	13250056
2012	13212056
2013	13164892
2014	13138985
2015	13162846
2016	13259469
2017	13405797
2018	13554172
2019	13704208
2020	13980445
2021	14370965
2022	14646246
2023	14812363