Year	Number of
1990	679.25
1991	702.02
1992	718.26
1993	738.73
1994	748.23
1995	762.03
1996	743.15
1997	715.83
1998	682.28
1999	689.28
2000	692.08
2001	693.19
2002	706.4
2003	723.62
2004	744.41
2005	779.45
2006	774.35
2007	802.55
2008	821.49
2009	800.84
2010	801.32
2011	798.24
2012	835.03
2013	834.63
2014	815.84
2015	826.5
2016	844.44