Year	Number
1992	66762
1993	102782
1994	112021
1995	118342
1996	126780
1997	135912
1998	138485
1999	143710
2000	179386
2001	190706
2002	181481
2003	193074
2004	221463
2005	237942
2006	267761
2007	281310
2008	293761
2009	240360
2010	277076
2011	317404
2012	312535
2013	315503
2014	295711
2015	294604
2016	307235
2017	317135