Year	Number
1990	4684
1991	4518
1992	4259
1993	3932
1994	3596
1995	3302
1996	3061
1997	2889
1998	2789
1999	2732
2000	2692
2001	2637
2002	2541
2003	2415
2004	2273
2005	2132
2006	2017
2007	1943
2008	1902
2009	1874
2010	1845
2011	1796
2012	1722
2013	1639
2014	1560
2015	1490
2016	1435
2017	1404
2018	1382
2019	1370
2020	1373
2021	1382
2022	1393