Year	Number of
1990	762.32
1991	802.08
1992	848.35
1993	899.02
1994	947.91
1995	1003.25
1996	1045.31
1997	1081.23
1998	1122.66
1999	1158.01
2000	1197.71
2001	1223.4
2002	1247.4
2003	1271.24
2004	1302.98
2005	1325.73
2006	1367.74
2007	1401.46
2008	1451.5
2009	1503.37
2010	1557.1
2011	1622.1
2012	1684.43
2013	1736.89
2014	1788.82
2015	1838.93
2016	1913.19