Year	Number
1990	561707
1991	538242
1992	517109
1993	494122
1994	468046
1995	441472
1996	415578
1997	392547
1998	373441
1999	356717
2000	341664
2001	328022
2002	315270
2003	303911
2004	294135
2005	285408
2006	278048
2007	271874
2008	266063
2009	261108
2010	257850
2011	259320
2012	269514
2013	268879
2014	262664
2015	255987
2016	241225
2017	232672
2018	226873
2019	212847
2020	201720
2021	196654
2022	187586