Year	Percent
1990	0
1996	0
1997	0.048
1998	0.17012
1999	0.24901
2000	1.21614
2001	1.34762
2002	1.93953
2003	2.65959
2004	2.97907
2005	4.89326
2006	5.4892
2007	5.767
2008	7.5
2009	9.5
2010	13
2011	18
2012	24
2013	30.53803
2014	38.07121
2015	45.78454
2016	48.05227