Year	Number
1960	3997374
1961	4031828
1962	4063439
1963	4092955
1964	4123575
1965	4151859
1966	4177737
1967	4203341
1968	4233091
1969	4265825
1970	4294039
1971	4318171
1972	4339052
1973	4362467
1974	4392540
1975	4414846
1976	4435329
1977	4460015
1978	4466887
1979	4475085
1980	4495829
1981	4513774
1982	4530219
1983	4545329
1984	4560365
1985	4564938
1986	4568585
1987	4580234
1988	4590335
1989	4541886
1990	4465765
1991	4426635
1992	4384506
1993	4355746
1994	4347563
1995	4334747
1996	4318203
1997	4296802
1998	4272770
1999	4252467
2000	4233564
2001	4151243
2002	4062190
2003	4029614
2004	3998634
2005	3967621
2006	3936002
2007	3904900
2008	3874850
2009	3847057
2010	3819078
2011	3792364
2012	3768443
2013	3745957
2014	3723787
2015	3699155
2016	3672681
2017	3645616
2018	3618547
2019	3592085
2020	3570641
2021	3542329
2022	3329964
2023	3311961