Year	Number of
1990	700.41
1991	720.1
1992	739.73
1993	757.91
1994	774.2
1995	791.09
1996	769.11
1997	749.78
1998	731.62
1999	713.93
2000	696.68
2001	715.15
2002	734.67
2003	752.12
2004	769.64
2005	788.6
2006	805.48
2007	825.56
2008	847.89
2009	872.55
2010	898.63
2011	908.25
2012	918.18
2013	925.66
2014	945.06
2015	967.58
2016	993.88