Year	Number
1992	45689
1993	81223
1994	86492
1995	92675
1996	101030
1997	108034
1998	109470
1999	113478
2000	144495
2001	159415
2002	152275
2003	162010
2004	191757
2005	209759
2006	238823
2007	252718
2008	264322
2009	215934
2010	251566
2011	292427
2012	288840
2013	293196
2014	275758
2015	276231
2016	287281
2017	297247