Year	Percent
1990	0
1994	0.0085
1995	0.03341
1996	0.24623
1997	0.40343
1998	1.19038
1999	1.9525
2000	3.07643
2001	7.57876
2002	8.96695
2003	11.6
2004	14.1
2005	17.1
2006	20.7
2007	25.2
2008	30.57
2009	31.4
2010	34.77
2011	36.01
2012	38.2
2013	39.2
2014	40.2
2015	40.9
2016	45.46174
2017	48.72763