Year	Number
1990	3240
1991	3059
1992	2976
1993	2910
1994	2936
1995	2892
1996	2859
1997	2832
1998	2811
1999	2797
2000	2789
2001	2777
2002	2760
2003	2764
2004	2766
2005	2780
2006	2798
2007	2707
2008	2650
2009	2708
2010	2755
2011	2788
2012	2843
2013	2923
2014	2969
2015	2983
2016	3011
2017	3037
2018	3054
2019	3041
2020	2991
2021	2925
2022	2825