Year	Percent
1990	0
1996	1.94557
1997	2.25856
1998	3.34381
1999	4.40044
2000	5.86281
2001	7.71473
2002	21.15238
2003	22.96978
2004	24.73768
2005	34
2006	38.5
2007	43.5
2008	49.2
2009	55.7
2010	63
2011	63.2
2012	64
2013	64.6
2014	68
2015	75.7
2016	76.81767