Year	Number
1960	757707
1961	773561
1962	790945
1963	811615
1964	834906
1965	860187
1966	887579
1967	915699
1968	944472
1969	973801
1970	1003552
1971	1033833
1972	1065080
1973	1097578
1974	1131445
1975	1167030
1976	1204750
1977	1245211
1978	1291214
1979	1344087
1980	1402578
1981	1465564
1982	1531880
1983	1600369
1984	1669797
1985	1739943
1986	1809537
1987	1895209
1988	1999853
1989	2103965
1990	2193158
1991	2263516
1992	2330165
1993	2362417
1994	2331533
1995	2317055
1996	2345744
1997	2377879
1998	2420203
1999	2468981
2000	2520504
2001	2579917
2002	2647360
2003	2720209
2004	2797955
2005	2882403
2006	2971867
2007	3065200
2008	3168176
2009	3278294
2010	3386352
2011	3491624
2012	3593445
2013	3690893
2014	3783803
2015	3871845
2016	3954100
2017	4030634
2018	4102402
2019	4169443
2020	4231836
2021	4290487
2022	4347687
2023	4405873