Year	Percent
1990	0
1995	0.01117
1996	0.0322
1997	0.04859
1998	0.06503
1999	0.08144
2000	0.1141
2001	0.3258
2002	0.39008
2003	0.9719
2004	2.42039
2005	6.04389
2006	9.60999
2007	15.03612
2008	23.86
2009	41.2
2010	45
2011	49
2012	54.65596
2013	57.2
2014	60.1
2015	63.25293
2016	66.36344