Year	Number of
1990	7436.78
1991	7346.7
1992	7180.09
1993	7015.99
1994	6830.3
1995	6709.83
1996	6575.54
1997	6410.16
1998	6223.36
1999	5976.15
2000	5813.17
2001	5654.27
2002	5529.6
2003	5416.32
2004	5214.95
2005	5261.15
2006	5311.54
2007	5367.05
2008	5375.6
2009	5419.94
2010	5365.35
2011	5377.59
2012	5424.13
2013	5453.51
2014	5533.4
2015	5609.68
2016	5686.13