Year	Number of
1990	805.03
1991	821.95
1992	850.32
1993	890.11
1994	936.66
1995	984.43
1996	1016.68
1997	1032.17
1998	1045.91
1999	1060.31
2000	1070.76
2001	1069.03
2002	1069.61
2003	1066.32
2004	1058.8
2005	1041.32
2006	1019.79
2007	1004.11
2008	995.84
2009	997.25
2010	997.82
2011	982.99
2012	967.82
2013	942.79
2014	932.89
2015	909.07
2016	892.18