Year	Number of
1990	763.47
1991	817.79
1992	881.35
1993	954.12
1994	1037.5
1995	1130.99
1996	1170.18
1997	1211.15
1998	1253.02
1999	1294.32
2000	1335.79
2001	1350.68
2002	1365.99
2003	1389.4
2004	1418.31
2005	1454.65
2006	1483.98
2007	1518.16
2008	1559.19
2009	1602.02
2010	1645.93
2011	1695.49
2012	1746.08
2013	1794.02
2014	1845.52
2015	1902.45
2016	1966.46