Year	Number of
1990	2684.21
1991	2788.53
1992	2909.56
1993	3056.44
1994	3215.76
1995	3353.31
1996	3483.8
1997	3638.76
1998	3794.62
1999	3914.23
2000	4027.65
2001	4136.79
2002	4314.03
2003	4519.2
2004	4635.78
2005	4843.87
2006	4959.1
2007	5107.54
2008	5394.12
2009	5602.15
2010	5848.01
2011	6025.54
2012	6233.67
2013	6536.53
2014	6755.18
2015	6953.3
2016	7261.21