Year	Number of
1990	1924.07
1991	1988.22
1992	2058.81
1993	2133.7
1994	2208.81
1995	2293.09
1996	2365.53
1997	2437.34
1998	2515.03
1999	2588.1
2000	2669.9
2001	2737.99
2002	2801.05
2003	2863.07
2004	2926.34
2005	2993.85
2006	3030.14
2007	3064.9
2008	3100.29
2009	3136.12
2010	3176.42
2011	3214.32
2012	3242.06
2013	3275.72
2014	3309.07
2015	3342.13
2016	3375.52