Year	Number of
1990	1900.53
1991	1953.6
1992	2011.04
1993	2073.5
1994	2138.09
1995	2209.1
1996	2272.03
1997	2337.11
1998	2399.53
1999	2430.31
2000	2470.44
2001	2509.22
2002	2557.13
2003	2610.05
2004	2667.97
2005	2732.12
2006	2798.35
2007	2824.71
2008	2855.85
2009	2886.52
2010	2925.19
2011	2978.47
2012	3053.29
2013	3108.76
2014	3173.36
2015	3274.69
2016	3372.48