Year	Number
1960	554599
1961	573995
1962	593341
1963	613137
1964	633831
1965	655099
1966	676832
1967	698971
1968	721531
1969	744780
1970	768251
1971	789502
1972	811991
1973	835184
1974	858520
1975	881622
1976	904278
1977	926772
1978	949637
1979	973215
1980	998133
1981	1024525
1982	1051698
1983	1072093
1984	1091747
1985	1109893
1986	1126162
1987	1140835
1988	1154702
1989	1168645
1990	1182715
1991	1197637
1992	1214755
1993	1232875
1994	1251407
1995	1270119
1996	1288103
1997	1305454
1998	1322681
1999	1339001
2000	1353488
2001	1366602
2002	1378509
2003	1390119
2004	1401943
2005	1413678
2006	1425466
2007	1436617
2008	1447087
2009	1458036
2010	1469278
2011	1481009
2012	1493944
2013	1507196
2014	1519915
2015	1532278
2016	1544229
2017	1555222
2018	1565461
2019	1575291
2020	1588216
2021	1601946
2022	1611831
2023	1621241