Year	Percent
1990	0
1993	0.0037
1994	0.0263
1995	0.07495
1996	0.22162
1997	0.44544
1998	2.23765
1999	2.69758
2000	3.61372
2001	4.53867
2002	6.58
2003	8.9
2004	15
2005	21.5
2006	24.66
2007	28.3
2008	32.42
2009	36.6
2010	39.93
2011	40.01
2012	45.87999
2013	49.7645
2014	54.08
2015	55.7632
2016	59.50395
2017	63.74728