Year	Number
1960	1080794
1961	1091708
1962	1105162
1963	1120968
1964	1138227
1965	1156479
1966	1162980
1967	1157139
1968	1152302
1969	1151221
1970	1162878
1971	1185117
1972	1206854
1973	1227566
1974	1249036
1975	1269713
1976	1290356
1977	1310562
1978	1329124
1979	1348189
1980	1367712
1981	1386381
1982	1404634
1983	1423031
1984	1440800
1985	1458613
1986	1476092
1987	1491830
1988	1509078
1989	1512006
1990	1505689
1991	1507549
1992	1508744
1993	1508521
1994	1475017
1995	1413347
1996	1358039
1997	1312021
1998	1278768
1999	1253634
2000	1231215
2001	1214129
2002	1206149
2003	1202703
2004	1201801
2005	1202263
2006	1205129
2007	1210451
2008	1219554
2009	1220270
2010	1219602
2011	1214083
2012	1205911
2013	1200213
2014	1195399
2015	1189573
2016	1182263
2017	1175045
2018	1168157
2019	1160607
2020	1157138
2021	1149424
2022	1147606
2023	1160110