Year	Number of
1990	559.22
1991	572.7
1992	597.61
1993	616.28
1994	649.8
1995	653.68
1996	665.43
1997	674.07
1998	691.23
1999	710.21
2000	712.54
2001	717.31
2002	731.34
2003	754.58
2004	783.51
2005	821.83
2006	839.27
2007	850.47
2008	874.95
2009	902.05
2010	935.35
2011	956.42
2012	982.65
2013	1007.82
2014	1018.43
2015	1036.98
2016	1062.18