Year	Percent
1990	0
1994	0.00584
1995	0.02859
1996	0.05595
1997	0.13691
1998	1.10341
1999	1.43161
2000	1.98225
2001	2.52401
2002	4.33228
2003	4.85767
2004	5.24363
2005	5.39764
2006	5.74059
2007	5.97
2008	6.22
2009	9
2010	25
2011	29
2012	36.2351
2013	48.09902
2014	49.6
2015	53.7
2016	55.5