Year	Number
1960	435739
1961	452189
1962	469025
1963	486199
1964	503445
1965	520682
1966	537389
1967	552934
1968	567624
1969	581647
1970	595058
1971	608220
1972	621521
1973	634798
1974	648229
1975	662233
1976	676689
1977	691716
1978	707755
1979	725039
1980	743632
1981	763078
1982	782771
1983	803135
1984	824805
1985	847693
1986	871414
1987	896656
1988	923751
1989	952854
1990	983389
1991	1014917
1992	1047112
1993	1079937
1994	1113843
1995	1148566
1996	1185259
1997	1224299
1998	1264157
1999	1302242
2000	1335284
2001	1364230
2002	1391450
2003	1412668
2004	1425668
2005	1433069
2006	1437820
2007	1443418
2008	1453427
2009	1471793
2010	1501881
2011	1547939
2012	1608247
2013	1673059
2014	1733982
2015	1788799
2016	1844259
2017	1907768
2018	1979136
2019	2056287
2020	2132675
2021	2200900
2022	2265663
2023	2341570