Year	Percent
1990	0
1994	0.00052
1995	0.0113
1996	0.03182
1997	0.0646
1998	0.13107
1999	0.46428
2000	0.66859
2001	1.00612
2002	1.67477
2003	2.00041
2004	2.65039
2005	2.96171
2006	3.26837
2007	4.02
2008	11
2009	18.2
2010	31.6
2011	50.6
2012	61.90663
2013	63.30422
2014	66
2015	70.82993
2016	74.58773
2017	76.42675