Year	Number of
1990	691.31
1991	578.64
1992	683.32
1993	724.93
1994	779.36
1995	810.87
1996	830.92
1997	825.67
1998	821.12
1999	822.11
2000	826.67
2001	829.11
2002	837.52
2003	867.41
2004	925.9
2005	964.57
2006	986.3
2007	978.05
2008	949.53
2009	927.53
2010	891.96
2011	864.01
2012	828.68
2013	758.24
2014	720.52
2015	702.83
2016	716.92