Year	Number of
1990	1811.61
1991	1859.23
1992	1892.21
1993	1927.87
1994	1944.89
1995	1941.63
1996	1935.52
1997	1916.36
1998	1929.2
1999	1960.14
2000	2000.15
2001	2007.17
2002	2000.91
2003	2033.4
2004	2057.23
2005	2086.44
2006	2128.28
2007	2099.96
2008	2112.33
2009	2150.25
2010	2210.9
2011	2209.32
2012	2260.98
2013	2284.98
2014	2363.83
2015	2458.55
2016	2548.92