Year	Percent
1990	0
1996	0.08639
1997	0.25696
1998	0.42525
1999	0.84543
2000	1.1774
2001	1.5
2002	1.9
2003	2.5
2004	3.2
2005	4.2
2006	5.5
2007	6.11
2008	10.08
2009	12.11
2010	15.9
2011	18.9
2012	20.32139
2013	23.1093
2014	24.76171
2015	26.8026
2016	28.99707