Year	Number
1960	1018795
1961	1116894
1962	1224594
1963	1342679
1964	1472338
1965	1614108
1966	1714039
1967	1796795
1968	1883670
1969	1974488
1970	2069820.0000000002
1971	2169754
1972	2274661
1973	2384330
1974	2499449
1975	2620127
1976	2746809
1977	2879242
1978	2976788
1979	3059562
1980	3144756
1981	3232079
1982	3321952
1983	3414324
1984	3509397
1985	3606844
1986	3707138
1987	3810221
1988	3905075
1989	3997210
1990	4091650
1991	4188322
1992	4287416
1993	4388572
1994	4492259
1995	4598395
1996	4707191
1997	4818251
1998	4940013
1999	5068225
2000	5199948
2001	5334718
2002	5473174
2003	5615224
2004	5469150
2005	5327261
2006	5188866
2007	5054066
2008	5282303
2009	5521242
2010	5651654
2011	5785146
2012	5921982
2013	6061665
2014	6204842
2015	6351400
2016	6501630
2017	6654984
2018	6811955
2019	6974439
2020	7144260
2021	7323079
2022	7511920
2023	7711305