Year	Number
1960	1246352
1961	1256939
1962	1269784
1963	1284594
1964	1300322
1965	1316471
1966	1329611
1967	1339179
1968	1349414
1969	1363021
1970	1381002
1971	1402403
1972	1423995
1973	1443690
1974	1463202
1975	1480925
1976	1498082
1977	1514442
1978	1528541
1979	1544046
1980	1560314
1981	1575779
1982	1591840
1983	1607878
1984	1621841
1985	1634702
1986	1647783
1987	1660337
1988	1675457
1989	1677424
1990	1671277
1991	1674762
1992	1679568
1993	1684595
1994	1652371
1995	1587782
1996	1530710
1997	1484199
1998	1451752
1999	1428784
2000	1409198
2001	1394671
2002	1387378
2003	1379326
2004	1370031
2005	1361960
2006	1357096
2007	1355792
2008	1360199
2009	1356482
2010	1351042
2011	1339514
2012	1324441
2013	1311537
2014	1302052
2015	1293998
2016	1284105
2017	1274079
2018	1264210
2019	1253561
2020	1247414
2021	1237028
2022	1233121
2023	1244017