Year	Number of
1990	1719.36
1991	1785.81
1992	1834.34
1993	1906.66
1994	1969.2
1995	2051.48
1996	2072.51
1997	2106.89
1998	2140.31
1999	2234.5
2000	2222.19
2001	2223.64
2002	2233.22
2003	2382.58
2004	2395.69
2005	2485.53
2006	2497.22
2007	2477.75
2008	2444.5
2009	2586.24
2010	2664.11
2011	2794.47
2012	2908.55
2013	3033.01
2014	3114.13
2015	3198.67
2016	3287.52