Year	Number
1960	1507564
1961	1533751
1962	1560977
1963	1588212
1964	1613666
1965	1639713
1966	1667913
1967	1697253
1968	1728023
1969	1760520
1970	1794829
1971	1831042
1972	1869378
1973	1909873
1974	1952481
1975	1997314
1976	2040232
1977	2081085
1978	2128476
1979	2180253
1980	2250160
1981	2331373
1982	2369518
1983	2396109
1984	2454870
1985	2523850
1986	2595872
1987	2671010
1988	2746670
1989	2823518
1990	2904999
1991	2989321
1992	3076503
1993	3168525
1994	3264601
1995	3364242
1996	3468617
1997	3578159
1998	3690887
1999	3805138
2000	3921797
2001	4043200
2002	4171592
2003	4304038
2004	4438324
2005	4574011
2006	4711389
2007	4855996
2008	5007577
2009	5162447
2010	5320360
2011	5480145
2012	5643599
2013	5814353
2014	6016480
2015	6236523
2016	6443382
2017	6639697
2018	6840394
2019	7055317
2020	7276693
2021	7503302
2022	7736769
2023	7979578