Year	Number of
1990	1605.42
1991	1673.89
1992	1701.4
1993	1745.54
1994	1787.76
1995	1838.72
1996	1889.51
1997	1960.82
1998	2015.94
1999	2081.01
2000	2162.85
2001	2234.71
2002	2322.04
2003	2391.67
2004	2468.15
2005	2506.14
2006	2543.85
2007	2595.95
2008	2644.11
2009	2674.16
2010	2723.02
2011	2708.31
2012	2814.79
2013	2876.57
2014	2910.98
2015	2815.97
2016	2826.67