Year	Number of
1990	891.13
1991	900.75
1992	919.18
1993	936.53
1994	962.22
1995	980.61
1996	979.86
1997	971.86
1998	952.79
1999	942.2
2000	934.34
2001	926.59
2002	925.45
2003	944.25
2004	984.95
2005	1021.63
2006	1041.74
2007	1037.86
2008	1016.11
2009	994.14
2010	996.17
2011	995.91
2012	990.52
2013	957.99
2014	932.65
2015	917.23
2016	941.48