Year	Number
1960	365001236
1961	363208139
1962	368920115
1963	383479857
1964	397620643
1965	409583835
1966	421750442
1967	431529230
1968	441383193
1969	452639251
1970	463458754
1971	474545627
1972	483610087
1973	492009331
1974	501804564
1975	510930428
1976	518793625
1977	521356084
1978	516254395
1979	510095815
1980	505641533
1981	502213343
1982	501440032
1983	499212704
1984	494462093
1985	490462143
1986	488131109
1987	488398062
1988	489580719
1989	491649282
1990	496117126
1991	500398229
1992	503073204
1993	505261300
1994	506173392
1995	505486350
1996	503327918
1997	499193716
1998	494588251
1999	489965763
2000	484236061
2001	476911021
2002	467516624
2003	457838039
2004	448384242
2005	438294503
2006	430431833
2007	426141397
2008	423461146
2009	421887846
2010	421036273
2011	421005235
2012	422636697
2013	425004706
2014	427461946
2015	429274808
2016	430986804
2017	433645208
2018	434879016
2019	434128218
2020	431438625
2021	426519070
2022	420236771
2023	413039141