Year	Percent
1990	0
1992	0.00067
1993	0.01345
1994	0.05382
1995	0.14815
1996	0.26975
1997	0.47296
1998	0.81274
1999	1.01898
2000	1.97723
2001	2.94437
2002	4.12827
2003	8.29886
2004	12.85939
2005	15.22667
2006	18.02328
2007	24.66
2008	26.83
2009	29
2010	43
2011	49
2012	63.8
2013	67.97
2014	70.52
2015	70.1
2016	73.09143
2017	76.00814