Year	Number of
1990	770.66
1991	811.79
1992	849.57
1993	884.61
1994	921.75
1995	961.29
1996	1000.86
1997	1033.7
1998	1091.85
1999	1153.04
2000	1220.96
2001	1292.64
2002	1360.28
2003	1464.37
2004	1585.81
2005	1708.22
2006	1808.06
2007	1914.72
2008	2017.77
2009	2126.3
2010	2236.67
2011	2340.74
2012	2444.72
2013	2526.62
2014	2598.3
2015	2671.32
2016	2765.89