Year	Number of
1990	1046.83
1991	1051.2
1992	989.51
1993	979.43
1994	1100.23
1995	1094.46
1996	987.81
1997	815.15
1998	744.79
1999	726.41
2000	709.77
2001	702.73
2002	704.42
2003	721.74
2004	734.15
2005	797.66
2006	791.58
2007	797.24
2008	803.71
2009	814.63
2010	866.05
2011	772.84
2012	786.06
2013	751.84
2014	782.42
2015	801.76
2016	791.44