Year	Percent
1990	0
1995	0.00073
1996	0.00884
1997	0.03441
1998	0.05026
1999	0.11426
2000	0.31806
2001	0.61978
2002	1.20777
2003	2.9419
2004	3.02353
2005	3.1019
2006	3.6
2007	4.4
2008	5.2
2009	6.1
2010	7.2
2011	8.8
2012	10.5
2013	13
2014	16.5
2015	16.6
2016	16.6