Year	Number
1960	2467926
1961	2551331
1962	2641036
1963	2733895
1964	2830154
1965	2929523
1966	3032526
1967	3139150
1968	3257310
1969	3386432
1970	3520861
1971	3622328
1972	3687608
1973	3753879
1974	3821436
1975	3890208
1976	3960315
1977	4031487
1978	4104040
1979	4177898
1980	4253190
1981	4307781
1982	4319441
1983	4331133
1984	4342874
1985	4354613
1986	4366400
1987	4378220
1988	4390088
1989	4401955
1990	4413870
1991	4441776
1992	4502102
1993	4563078
1994	4624965
1995	4687691
1996	4751357
1997	4815708
1998	4881022
1999	4947221
2000	5014411
2001	5082325
2002	5154674
2003	5229816
2004	5306159
2005	5383402
2006	5461879
2007	5541499
2008	5622392
2009	5704239
2010	5787392
2011	5871758
2012	5957472
2013	6044196
2014	6132182
2015	6221450
2016	6312017
2017	6403902
2018	6497124
2019	6559041
2020	6617513
2021	6668865
2022	6713557
2023	6751374