Year	Number
1960	1750038
1961	1803293
1962	1856257
1963	1905692
1964	1950527
1965	2002046
1966	2063017
1967	2126120
1968	2191243
1969	2258125
1970	2326760
1971	2396609
1972	2468156
1973	2542244
1974	2618959
1975	2698933
1976	2782016
1977	2867987
1978	2957324
1979	3050221
1980	3145323
1981	3241622
1982	3339270
1983	3438517
1984	3539715
1985	3644715
1986	3755802
1987	3872300
1988	3993764
1989	4121356
1990	4254998
1991	4393241
1992	4536097
1993	4685540
1994	4842872
1995	5009856
1996	5180016
1997	5347108
1998	5518141
1999	5694308
2000	5874510
2001	6059460
2002	6248398
2003	6442915
2004	6644224
2005	6854468
2006	7074702
2007	7305428
2008	7548264
2009	7804855
2010	8078095
2011	8369511
2012	8689408
2013	9029922
2014	9383245
2015	9758173
2016	10150650
2017	10551055
2018	10961996
2019	11388161
2020	11830026
2021	12292016
2022	12776544
2023	13287075