Year	Percent
1990	0
1992	0.28594
1993	0.63122
1994	3.16872
1995	4.88424
1996	8.0419
1997	14.60152
1998	31.63626
1999	41.49448
2000	47.37956
2001	53.24102
2002	59.08075
2003	60.96254
2004	61.84763
2005	62.72021
2006	69
2007	69.76
2008	72.03
2009	79.7
2010	80.46
2011	81.23
2012	81.64447
2013	82.78
2014	85.5
2015	88.22289
2016	88.47019