Year	Number
1960	2150853
1961	2231234
1962	2314737
1963	2401364
1964	2491360
1965	2584466
1966	2681188
1967	2781530
1968	2885773
1969	2993620
1970	3109945
1971	3244249
1972	3384550
1973	3530507
1974	3682972
1975	3842023
1976	4008175
1977	4181024.9999999995
1978	4361584
1979	4549940
1980	4723143
1981	4829328
1982	4938050
1983	5049221
1984	5163053
1985	5279127
1986	5397976
1987	5519501
1988	5643934
1989	5770820
1990	5888835
1991	5935017
1992	5981625
1993	6028469
1994	6075746
1995	6123394
1996	6171481
1997	6219812
1998	6268590
1999	6317749
2000	6395429
2001	6561670
2002	6732471
2003	6907718
2004	7087778
2005	7272016
2006	7461307
2007	7655526
2008	7855078
2009	8059261
2010	8269045
2011	8484289
2012	8705444
2013	8931731
2014	9164225
2015	9402771
2016	9647526
2017	9898653
2018	10156316
2019	10350204
2020	10539415
2021	10722815
2022	10899698
2023	11069982