Year	Number
1960	1221178
1961	1272151
1962	1328971
1963	1388336
1964	1450449
1965	1515167
1966	1582878
1967	1653622
1968	1727643
1969	1804772
1970	1885466
1971	1965105
1972	2046772
1973	2131597
1974	2220067
1975	2312210
1976	2408318
1977	2508143
1978	2612257
1979	2720697
1980	2833802
1981	2951282
1982	3041739
1983	3127569
1984	3216237
1985	3307465
1986	3401720
1987	3498979
1988	3599483
1989	3702920
1990	3809821
1991	3920159
1992	4034215
1993	4151631.9999999995
1994	4273018
1995	4396675
1996	4524187
1997	4655513
1998	4791339
1999	4931639
2000	5076780
2001	5226320
2002	5381039
2003	5540918
2004	5706375
2005	5876742
2006	6053023
2007	6235242
2008	6423881
2009	6618373
2010	6819744
2011	5702322
2012	4932573
2013	4396767
2014	4014938
2015	4443339
2016	5113582
2017	5238862
2018	5368378
2019	5502085
2020	5644630
2021	5805965
2022	5998603
2023	6231225