Year	Number
1960	535471
1961	546473
1962	562653
1963	579311
1964	596487
1965	614123
1966	632305
1967	651026
1968	670328
1969	690147
1970	710580
1971	718557
1972	717235
1973	715920
1974	714605
1975	713293
1976	711982
1977	710676
1978	709371
1979	708068
1980	706766
1981	721451
1982	748589
1983	776748
1984	806007
1985	836284
1986	867741
1987	900382
1988	934299
1989	969394
1990	1005859
1991	1027960
1992	1038718.0000000001
1993	1049558
1994	1060527
1995	1071610
1996	1082824
1997	1094125
1998	1105559
1999	1117113
2000	1128804
2001	1140845
2002	1153230
2003	1165750
2004	1178424
2005	1191200
2006	1204132
2007	1217204
2008	1230437
2009	1243777
2010	1257280
2011	1270929
2012	1284746
2013	1298675
2014	1312774
2015	1327026
2016	1341453
2017	1356037
2018	1370779
2019	1383092
2020	1395356
2021	1407572
2022	1419621
2023	1431538