Year	Number
1990	289690
1991	283234
1992	283188
1993	281708
1994	279963
1995	278350
1996	276562
1997	274708
1998	272613
1999	271466
2000	266661
2001	261505
2002	254017
2003	248989
2004	249755
2005	229763
2006	221811
2007	214473
2008	211462
2009	200160
2010	193225
2011	186788
2012	180383
2013	174937
2014	168556
2015	162963
2016	157454
2017	152370
2018	147673
2019	143200
2020	139197
2021	135571
2022	132847