Year	Percent
1990	0
1993	0.00846
1994	0.04987
1995	0.08169
1996	0.19272
1997	0.4737
1998	0.69881
1999	2.29212
2000	3.76169
2001	5.18948
2002	11.38
2003	12.33
2004	14.58
2005	15.46
2006	18.24
2007	28.63
2008	34.37
2009	36.4
2010	39.82
2011	43.06571
2012	45.13
2013	46.25
2014	51.04
2015	53.74498
2016	58.34773
2017	64.68462