Year	Number
1990	291705
1991	293042
1992	285556
1993	283918
1994	282839
1995	282260
1996	282151
1997	282816
1998	283698
1999	284648
2000	284870
2001	284331
2002	284089
2003	281627
2004	281918
2005	281355
2006	272937
2007	268744
2008	263968
2009	259474
2010	254682
2011	249073
2012	242786
2013	235403
2014	227494
2015	220420
2016	211865
2017	204771
2018	199003
2019	194341
2020	190788
2021	188864
2022	187562