Year	Number
1960	2824547
1961	2909022
1962	2996221
1963	3086115
1964	3178918
1965	3274327
1966	3372828
1967	3474381
1968	3579231
1969	3687040
1970	3787418
1971	3877389
1972	3969770
1973	4064236
1974	4161240
1975	4260714
1976	4362871
1977	4467349
1978	4574648
1979	4661119
1980	4721126
1981	4781872
1982	4843621
1983	4906307
1984	4970033
1985	5034548
1986	5100136
1987	5166722
1988	5234418
1989	5264759
1990	5251730
1991	5238803
1992	5225963
1993	5213259
1994	5200640
1995	5188121
1996	5175686
1997	5163385
1998	5151167
1999	5139045
2000	5127007
2001	5115099
2002	5114021
2003	5121197
2004	5128533
2005	5144179
2006	5168383
2007	5192842
2008	5217596
2009	5238873
2010	5256624
2011	5274515
2012	5292576
2013	5310730
2014	5329053
2015	5347523
2016	5366164
2017	5384902
2018	5403788
2019	5415973
2020	5426469
2021	5435099
2022	5441541
2023	5445557