Year	Number of
1990	1008.61
1991	985.55
1992	971.53
1993	948.04
1994	910.08
1995	877.19
1996	832.96
1997	788.11
1998	781.2
1999	744.82
2000	714.78
2001	723.56
2002	708.7
2003	672.5
2004	651.1
2005	635.46
2006	631.95
2007	628.81
2008	634.1
2009	639.04
2010	652.45
2011	673.52
2012	690.74
2013	693.76
2014	687.99
2015	699.41
2016	707.46