Year	Number
1960	34319
1961	36251
1962	38295
1963	40453
1964	42737
1965	45143
1966	47688
1967	50377
1968	53220
1969	56217
1970	59386
1971	64352.99999999999
1972	69910
1973	75929
1974	82475
1975	89586
1976	97321
1977	105700
1978	114813
1979	121567
1980	128265.99999999999
1981	135315
1982	142761
1983	150617
1984	158917
1985	167650
1986	176875
1987	186609
1988	196892
1989	207712
1990	219142
1991	231201
1992	250130
1993	271500
1994	294729
1995	319946
1996	347360
1997	379052
1998	415010
1999	454380
2000	497546
2001	544678
2002	596348
2003	622065
2004	644520
2005	667720
2006	691789
2007	716725
2008	742597
2009	769327
2010	797059
2011	825790
2012	855599
2013	886397
2014	918304
2015	951359
2016	985604
2017	1021081
2018	1057836
2019	1094796
2020	1132101
2021	1169889
2022	1208296
2023	1247551