Year	Number
1990	2875
1991	2833
1992	2786
1993	2744
1994	2707
1995	2678
1996	2661
1997	2657
1998	2658
1999	2661
2000	2664
2001	2663
2002	2668
2003	2672
2004	2677
2005	2684
2006	2693
2007	2703
2008	2716
2009	2725
2010	9456
2011	2711
2012	2692
2013	2655
2014	2612
2015	2565
2016	2523
2017	2496
2018	2472
2019	2452
2020	2447
2021	2437
2022	2431