Year	Number of
1990	728.27
1991	786.91
1992	857.7
1993	870.68
1994	940.25
1995	968.89
1996	1017.28
1997	1045.11
1998	1074.59
1999	1121.06
2000	1141.06
2001	1192.97
2002	1328.01
2003	1379.95
2004	1382.23
2005	1437.11
2006	1498.75
2007	1545.66
2008	1638.19
2009	1717.1
2010	1776.8
2011	1872.96
2012	1952.32
2013	2029.83
2014	2079.61
2015	2148.87
2016	2215.16