Year	Number
1960	4068095
1961	4191667
1962	4238188
1963	4282017
1964	4327341
1965	4370983
1966	4411666
1967	4449367
1968	4483915
1969	4518607
1970	4538223
1971	4557449
1972	4596622
1973	4641445
1974	4689623
1975	4739105
1976	4789507
1977	4840501
1978	4890125
1979	4938973
1980	4979815
1981	5016105
1982	5055099
1983	5091971
1984	5127097
1985	5161768
1986	5193838
1987	5222840
1988	5250596
1989	5275942
1990	5299187
1991	5303294
1992	5305016
1993	5325305
1994	5346331
1995	5361999
1996	5373361
1997	5383291
1998	5390516
1999	5396020
2000	5388720
2001	5378867
2002	5376912
2003	5373374
2004	5372280
2005	5372807
2006	5373054
2007	5374622
2008	5379233
2009	5386406
2010	5391428
2011	5398384
2012	5407579
2013	5413393
2014	5418649
2015	5423801
2016	5430798
2017	5439232
2018	5446771
2019	5454147
2020	5458827
2021	5447247
2022	5431752
2023	5426740