Year	Number of
1990	817.42
1991	836.61
1992	861.61
1993	893.22
1994	934.38
1995	970
1996	990.55
1997	1015.37
1998	1038.31
1999	1067.51
2000	1098.87
2001	1106.47
2002	1119.68
2003	1137.92
2004	1171.23
2005	1213.31
2006	1254.07
2007	1295.65
2008	1334.6
2009	1389.89
2010	1457.14
2011	1517.62
2012	1575.2
2013	1632.21
2014	1690.14
2015	1746.84
2016	1803.82