Year	Percent
1990	0
1996	0.00353
1997	0.00347
1998	0.00342
1999	0.01679
2000	0.02635
2001	0.03222
2002	0.15725
2003	0.46001
2004	1.0775
2005	1.46342
2006	2.00799
2007	2.7597
2008	4.28751
2009	4.5
2010	5
2011	5.6
2012	6.1067
2013	6.6
2014	7.11
2015	7.61597
2016	8.12195