Year	Number of
1990	834.12
1991	875.46
1992	922.01
1993	971.99
1994	1025.58
1995	1083.95
1996	1141.55
1997	1212.55
1998	1286.64
1999	1365.16
2000	1451.5
2001	1478.81
2002	1511.85
2003	1549.8
2004	1585.08
2005	1624.95
2006	1645.52
2007	1668.26
2008	1693.22
2009	1724.62
2010	1759.57
2011	1821.5
2012	1891.44
2013	1971.98
2014	2058.45
2015	2149.92
2016	2239.02