Year	Number of
1990	537.07
1991	569.78
1992	609.84
1993	652.05
1994	694.45
1995	736.76
1996	728.92
1997	716.32
1998	695.52
1999	657.28
2000	678.74
2001	700.7
2002	728.39
2003	757.39
2004	780.42
2005	802.93
2006	826.09
2007	853.23
2008	892.27
2009	935.63
2010	976.99
2011	1013.05
2012	1040.67
2013	1057.43
2014	1073.63
2015	1109.79
2016	1147.03