Year	Number of
1990	595.43
1991	602.96
1992	595.52
1993	624.31
1994	632.98
1995	646.49
1996	643.56
1997	663.12
1998	673.22
1999	663.97
2000	678.98
2001	678.14
2002	689.82
2003	697.36
2004	712.97
2005	733.48
2006	742.58
2007	750.35
2008	757.09
2009	764.04
2010	772.13
2011	771.32
2012	773.01
2013	778.45
2014	783.63
2015	790.33
2016	796.87