Year	Number of
1990	808.48
1991	799.81
1992	790.67
1993	811.55
1994	821.14
1995	810.29
1996	833.82
1997	847.26
1998	836.59
1999	835.43
2000	822.93
2001	872.14
2002	897.02
2003	923.17
2004	939.5
2005	960.04
2006	1008.87
2007	1038.19
2008	1105.5
2009	1125.32
2010	1161.64
2011	1135.58
2012	1177.48
2013	1141.58
2014	1163.62
2015	1171.22
2016	1176.8