Year	Percent
1990	0
1995	0.07162
1996	0.14017
1997	1.24108
1998	2.72235
1999	5.37681
2000	7.95274
2001	6.78322
2002	7
2003	8
2004	9
2005	10.14
2006	15
2007	18.74
2008	22.53
2009	30.14
2010	43.68
2011	52
2012	61.24979
2013	70.5
2014	73
2015	74
2016	76.11