Year	Number of
1990	2000.93
1991	2105.98
1992	2209.32
1993	2312.33
1994	2428.6
1995	2552.15
1996	2646.65
1997	2735.99
1998	2816.51
1999	2856.65
2000	2898.92
2001	2940.14
2002	2983.55
2003	3031.33
2004	3086.19
2005	3147.7
2006	3217.51
2007	3291.15
2008	3372.35
2009	3457.26
2010	3544.93
2011	3629.79
2012	3709.68
2013	3792.15
2014	3875.78
2015	3960.17
2016	4043.01