Year	Number of
1990	11301.25
1991	11561.9
1992	11802.11
1993	12029.78
1994	12134.07
1995	12280.64
1996	12387.19
1997	12346.84
1998	12412.82
1999	12534.27
2000	12564.26
2001	12626.5
2002	12721.66
2003	12786.7
2004	12651.34
2005	12562.37
2006	12629.89
2007	12671.04
2008	12778.52
2009	12779.99
2010	12847.68
2011	12883.45
2012	13003.34
2013	13012.02
2014	12897.6
2015	12968.63
2016	13041.36