Year	Number of
1990	853.22
1991	904.74
1992	944.21
1993	979.37
1994	1012.37
1995	1057.47
1996	1089.33
1997	1113.15
1998	1130.46
1999	1178.37
2000	1208.08
2001	1252.78
2002	1295.49
2003	1355.39
2004	1407.95
2005	1458.95
2006	1505.02
2007	1520.99
2008	1556.96
2009	1620.49
2010	1695.54
2011	1720.03
2012	1776.03
2013	1812.62
2014	1872.27
2015	1940.56
2016	2006.21