Year	Percent
1990	0
1996	0.00062
1997	0.01503
1998	0.02332
1999	0.05663
2000	0.0825
2001	0.0908
2002	0.5188
2003	0.60473
2004	0.88122
2005	1.0486
2006	1.24782
2007	5.01
2008	6.89
2009	9.96
2010	12.35
2011	14.905
2012	17.4465
2013	20
2014	22.55
2015	24.08541
2016	24.57921