Year	Number
1960	583458
1961	541424
1962	549734
1963	588381
1964	501115
1965	497365
1966	337814
1967	377776
1968	502456
1969	669129
1970	937473
1971	914163
1972	945777
1973	842220
1974	789950
1975	832170
1976	760399
1977	1015857
1978	1148506
1979	1119646
1980	1123144
1981	719062
1982	701091
1983	799544
1984	726016
1985	759118
1986	684733
1987	677547
1988	759523
1989	919737
1990	1421775
1991	1569223
1992	1816509
1993	1752153
1994	1806698
1995	1678815
1996	1771618
1997	1866819
1998	1799996
1999	1667953
2000	1479676
2001	1335725
2002	1168499
2003	1074728
2004	1200409
2005	1129462
2006	1113259
2007	1108509
2008	1095864
2009	1031010
2010	1030731
2011	1322433
2012	1323368
2013	1320840
2014	1250914
2015	1221849
2016	1449371
2017	1377630
2018	1200796
2019	1158444
2020	675560
2021	561580
2022	998540
2023	999700