Year	Number of
1990	822.99
1991	852.21
1992	887.15
1993	880.42
1994	918.72
1995	972.2
1996	1028.35
1997	1127.68
1998	1132.31
1999	1150.55
2000	1186.57
2001	1157.74
2002	1152.75
2003	1155.98
2004	1147.15
2005	1134.14
2006	1146.76
2007	1128.4
2008	1118.32
2009	1130.9
2010	1138.4
2011	1130.07
2012	1105.15
2013	1075.11
2014	1057.98
2015	1054.68
2016	1053.6