Year	Number
1960	1552547
1961	1583585
1962	1617523
1963	1657886
1964	1702680
1965	1752244
1966	1807608
1967	1864483
1968	1922697
1969	1982006
1970	2042126
1971	2103240
1972	2166157
1973	2231430
1974	2299327
1975	2370592
1976	2446136
1977	2527135
1978	2619102
1979	2724384
1980	2840214
1981	2964468
1982	3094897
1983	3229251
1984	3365263
1985	3502599
1986	3638942
1987	3807916
1988	4014119
1989	4219193
1990	4396288
1991	4537358
1992	4672351
1993	4739308
1994	4680073
1995	4655892
1996	4719623
1997	4788774
1998	4876360
1999	4980322
2000	5092819
2001	5218627
2002	5359548
2003	5511509
2004	5673576
2005	5848556
2006	6032624
2007	6222489
2008	6425914
2009	6639597
2010	6849578
2011	7054315
2012	7252372
2013	7441594
2014	7621388
2015	7790837
2016	7948036
2017	8093358
2018	8229029
2019	8355525
2020	8473148
2021	8583538
2022	8691168
2023	8801005