Year	Number
1990	10427
1991	10147
1992	9786
1993	9396
1994	9033
1995	8773
1996	8651
1997	8679
1998	8824
1999	9058
2000	9328
2001	9609
2002	9841
2003	9992
2004	10071
2005	10132
2006	10224
2007	10364
2008	10552
2009	10763
2010	10890
2011	10980
2012	11079
2013	11166
2014	11229
2015	11271
2016	11295
2017	11265
2018	11191
2019	11175
2020	11363
2021	11733
2022	12111