Year	Number
1960	519616
1961	533149
1962	547274
1963	562069
1964	577582
1965	593837
1966	610871
1967	628668
1968	647274
1969	666736
1970	687067
1971	708345
1972	730596
1973	753680
1974	777465
1975	799355
1976	819033
1977	838851
1978	858828
1979	878832
1980	898860
1981	919024
1982	939117
1983	958763
1984	983271
1985	1013289
1986	1044053
1987	1075594
1988	1107688
1989	1140512
1990	1173727
1991	1207623
1992	1242298
1993	1279632
1994	1317953
1995	1355347
1996	1393344
1997	1421517
1998	1451061
1999	1491060
2000	1550503
2001	1611459
2002	1650909
2003	1698593
2004	1758751
2005	1824640
2006	1895843
2007	1968249
2008	2035727
2009	2120331
2010	2211326
2011	2285052
2012	2350164
2013	2408084
2014	2466860
2015	2527113
2016	2588778
2017	2651836
2018	2716588
2019	2781753
2020	2847552
2021	2914434
2022	2981800
2023	3049941