Year	Percent
1990	0
1995	0.003
1996	0.01953
1997	0.09548
1998	0.46659
1999	0.59265
2000	0.71233
2001	1.7382
2002	3.39175
2003	4.54885
2004	5.1
2005	5.7
2006	6.5
2007	7.3
2008	8.3
2009	9.3
2010	10.5
2011	12.3
2012	16
2013	19.7
2014	23.4
2015	28.80594
2016	34.50933