Year	Number
1993	240028
1994	245653
1995	254053
1996	261995
1997	259178
1998	258422
1999	240606
2000	206629
2001	205610
2002	210209
2003	217849
2004	227009
2005	226857
2006	219575
2007	214945
2008	206234
2009	199671
2010	194950
2011	185036
2012	174304
2013	155326
2014	148982
2015	144566
2016	141002
2017	137227