Year	Number
1960	71280
1961	79267
1962	88162
1963	94733
1964	101770
1965	109203
1966	117189
1967	125760
1968	134970
1969	144827
1970	155419
1971	166785
1972	179000
1973	195007
1974	212470
1975	231497
1976	252258
1977	274816
1978	299426
1979	311267
1980	323593
1981	336372
1982	349674
1983	363502
1984	377897
1985	392820
1986	408355
1987	424503
1988	441314
1989	458742
1990	476883
1991	495741
1992	515373.00000000006
1993	535406
1994	555139
1995	575600
1996	596844
1997	618810
1998	641617
1999	665265
2000	689818
2001	715207
2002	741567
2003	768898
2004	797277
2005	826620
2006	857086
2007	888675
2008	921474
2009	955389
2010	990552
2011	1027010
2012	1064809
2013	1103999
2014	1144632
2015	1186761
2016	1230440
2017	1275726
2018	1322679
2019	1371524
2020	1422547
2021	1476115
2022	1532588
2023	1592324