Year	Number
1960	87744
1961	88745
1962	90563
1963	93199
1964	95870
1965	98577
1966	101335
1967	104146
1968	107015
1969	109957
1970	112970
1971	116057
1972	119223
1973	122461
1974	125751
1975	129070
1976	132263
1977	135338
1978	138590
1979	141951
1980	145865
1981	150119
1982	153005
1983	155639
1984	159367
1985	163389
1986	167428
1987	171483
1988	175507
1989	179508
1990	183595
1991	187665
1992	191679
1993	195708
1994	199692
1995	203559
1996	207352
1997	211114
1998	214869
1999	218583
2000	222256
2001	226029
2002	230076
2003	234287
2004	238441
2005	242533
2006	246764
2007	251415
2008	256505
2009	261928
2010	267673
2011	273641
2012	279633
2013	285041
2014	289866
2015	295452
2016	301896
2017	308317
2018	315129
2019	322832
2020	329198
2021	333263
2022	337508
2023	344136