Year	Number of
1990	806.11
1991	855.13
1992	911.74
1993	969.76
1994	1028.87
1995	1096.42
1996	1159.62
1997	1238.2
1998	1319.49
1999	1406.5
2000	1498.58
2001	1533.99
2002	1575.72
2003	1624.26
2004	1663.76
2005	1710.71
2006	1738.29
2007	1768.02
2008	1800.39
2009	1837.18
2010	1880.27
2011	1948.97
2012	2024.37
2013	2108.8
2014	2198.22
2015	2291.01
2016	2379.84