Year	Percent
1990	0
1994	0.06247
1995	0.31013
1996	1.84747
1997	3.36324
1998	6.98707
1999	9.97277
2000	10.53906
2001	11.12144
2002	11.41947
2003	15.93714
2004	17.0631
2005	20.08819
2006	29.4
2007	34
2008	39.3
2009	41.8
2010	46.4
2011	51.40466
2012	54.45377
2013	57.69
2014	61.46
2015	64.6
2016	66.4