Year	Number
1990	180951
1991	194937
1992	181967
1993	183147
1994	184089
1995	184264
1996	183443
1997	181355
1998	178639
1999	174009
2000	170214
2001	166763
2002	163852
2003	161507
2004	161436
2005	164617
2006	154715
2007	151708
2008	148119
2009	144436
2010	139480
2011	135113
2012	130672
2013	126032
2014	121280
2015	117381
2016	111700
2017	106986
2018	102395
2019	98030
2020	94078
2021	90576
2022	87584