Year	Number
1990	138287
1991	133053
1992	129491
1993	122318
1994	112329
1995	105921
1996	99912
1997	95402
1998	91435
1999	87961
2000	85310
2001	82526
2002	79601
2003	77731
2004	76341
2005	74811
2006	73851
2007	73323
2008	72298
2009	70350
2010	67793
2011	65557
2012	63596
2013	61826
2014	60317
2015	59192
2016	57874
2017	56041
2018	53943
2019	52006
2020	50159
2021	48955
2022	48285