Year	Percent
1990	0
2001	0.1
2002	0.5
2003	0.6
2004	0.9
2005	0.9
2006	0.95234
2007	0.93
2008	1
2009	1.06
2010	2.5
2011	5
2012	7.1
2013	9.2
2014	13.21
2015	17.22
2016	21.23
2017	49.36