Year	Percent
1990	0
1992	0.06548
1993	0.30071
1994	1.15975
1995	2.77897
1996	3.52511
1997	5.70628
1998	10.79603
1999	14.5009
2000	28.57695
2001	31.52749
2002	41.52
2003	45.32
2004	53.2
2005	61.45
2006	63.51
2007	66.19
2008	70.58
2009	72.5
2010	74.1
2011	76.5
2012	78.38993
2013	80.0043
2014	84.24153
2015	88.41181
2016	87.23733
2017	88.10246