Year	Number of
1990	5753.99
1991	5834.25
1992	5895.39
1993	6032.91
1994	6097.52
1995	6143.99
1996	6118.1
1997	6150.47
1998	6189.26
1999	6180.63
2000	6146.83
2001	6174.36
2002	6196.81
2003	6260.78
2004	6264.89
2005	6306.58
2006	6344.27
2007	6385.55
2008	6418.57
2009	6463.5
2010	6493.44
2011	6577.39
2012	6672.06
2013	6673.65
2014	6630.01
2015	6698.9
2016	6793.07