Year	Number
1990	2115
1991	2057
1992	1998
1993	1945
1994	1894
1995	1853
1996	1818
1997	1784
1998	1750
1999	1725
2000	1705
2001	1688
2002	1694
2003	1675
2004	1674
2005	1680
2006	1688
2007	1692
2008	1684
2009	1701
2010	1642
2011	1618
2012	1596
2013	1577
2014	1563
2015	1552
2016	1543
2017	1536
2018	1531
2019	1545
2020	1519
2021	1504
2022	1481