Year	Number
1983	9754
1984	9626
1985	9475
1986	9221
1987	8936
1988	8627
1989	8242
1990	7820
1991	7340
1992	6755
1993	6119
1994	5559
1995	5095
1996	4644
1997	4200
1998	3805
1999	3475
2000	3180
2001	2891
2002	2608
2003	2335
2004	2101
2005	1927
2006	1822
2007	1778
2008	1750
2009	1705
2010	1620
2011	1550
2012	1534
2013	1537
2014	1527
2015	1489
2016	1417
2017	1322
2018	1239
2019	1171
2020	1098
2021	1022
2022	951