Year	Number of
1990	667.45
1991	685.83
1992	702.67
1993	697.6
1994	730.21
1995	731.85
1996	748.05
1997	746.36
1998	752.95
1999	769.88
2000	757.98
2001	769.03
2002	833.97
2003	829.02
2004	810.81
2005	826.4
2006	855.11
2007	879.85
2008	927.41
2009	965.02
2010	999.18
2011	1042.2
2012	1091.9
2013	1143.54
2014	1221.35
2015	1296.28
2016	1365.78