Year	Percent
1990	0
1996	0.0037
1997	0.01433
1998	0.06256
1999	0.16861
2000	0.19639
2001	0.22251
2002	0.33972
2003	0.42325
2004	0.52535
2005	0.56772
2006	0.60755
2007	0.65
2008	1.65
2009	1.63
2010	1.7
2011	1.9
2012	2.3
2013	3
2014	3.7
2015	4.17397
2016	4.71366
2017	9.8