Year	Number
1969	119586
1970	119042
1971	118654
1972	117885
1973	116682
1974	115168
1975	113541
1976	112131
1977	110796
1978	109442
1979	108387
1980	107097
1981	105656
1982	104868
1983	104581
1984	103876
1985	101729
1986	98499
1987	95185
1988	91948
1989	89933
1990	88558
1991	86748
1992	84667
1993	82499
1994	80184
1995	77726
1996	75452
1997	73315
1998	71079
1999	69032
2000	67276
2001	66130
2002	65322
2003	63539
2004	60740
2005	57994
2006	55493
2007	53322
2008	63034
2009	48567
2010	46418
2011	44250
2012	42261
2013	40526
2014	39090
2015	37893
2016	36911
2017	35793
2018	34486
2019	33267
2020	32003
2021	30750
2022	29605