Year	Percent
1990	0
1995	0.00922
1996	0.03551
1997	0.05131
1998	0.20609
1999	0.71583
2000	0.92179
2001	1.33679
2002	1.79678
2003	2.43678
2004	3.308
2005	3.799
2006	5.23769
2007	6.20504
2008	6.88
2009	7.63
2010	9.2
2011	10.8703
2012	12.44923
2013	14
2014	15.56
2015	16.5
2016	18.5