Year	Number
1969	20000
1971	70
1975	130
1976	180
1977	170
1978	70
1979	300
1982	100
1983	90
1984	90
1985	120
1986	160
1987	150
1988	140
1989	80
1990	8123
1991	8128
1992	12114
1993	150095
1994	113665
1995	83201
1996	35613
1997	22853
1998	14558
1999	13256
2000	12714
2001	11787
2002	33506
2003	43948
2004	42049
2005	53534
2006	44938
2007	34955
2008	18201
2009	13655
2010	13828
2011	13588
2012	16012
2013	18681
2014	18448
2015	17404
2016	11866
2017	12153
2018	11896
2019	11946
2020	12406
2021	11894
2022	8531
2023	7057