Year	Number
1960	2275406
1961	2325214
1962	2376058
1963	2427831
1964	2482450
1965	2539843
1966	2598648
1967	2661189
1968	2728372
1969	2798114
1970	2870053
1971	2944949
1972	3021051
1973	3100080
1974	3182787
1975	3266190
1976	3352458
1977	3437453
1978	3528377
1979	3625356
1980	3708374
1981	3786891
1982	3882192
1983	3985051
1984	4092511
1985	4207380
1986	4326198
1987	4458755
1988	4586996
1989	4712652
1990	4844887
1991	4977103
1992	5125878
1993	5285883
1994	5436846
1995	5586617
1996	5745773
1997	5909270
1998	6077968
1999	6262554
2000	6457567
2001	6661027
2002	6885483
2003	7119555
2004	7350436
2005	7584892
2006	7829473
2007	8075886
2008	8318387
2009	8568154
2010	8832013
2011	9110470
2012	9393030
2013	9665652
2014	9937876
2015	10228032
2016	10523311
2017	10821895
2018	11155701
2019	11530019
2020	11903809
2021	12242405
2022	12596438
2023	13017496