Year	Percent
1990	0
1998	0.61655
1999	1.21158
2000	1.78523
2001	2.33746
2002	2.5
2003	3
2004	3.5
2005	4
2006	4.5
2007	6
2008	7
2009	8.97
2010	9.07
2011	10
2012	10.7468
2013	11.5
2014	12.25
2015	12.99748
2016	13.7