Year	Number of
1990	8138.56
1991	8416.67
1992	8728.95
1993	9028.07
1994	9200.84
1995	9526.64
1996	9712.21
1997	9842.83
1998	9845.85
1999	9732.26
2000	9717.21
2001	9671.92
2002	9954.28
2003	9848.37
2004	9836.64
2005	9668.18
2006	9549.59
2007	9574.8
2008	9277.43
2009	9253.11
2010	9188.57
2011	9161.66
2012	9295.31
2013	9630.11
2014	9973.58
2015	10527.74
2016	11007.72