Year	Percent
1990	0
1995	0.15815
1996	0.39308
1997	1.17317
1998	2.72483
1999	5.81425
2000	7.72141
2001	15.38463
2002	21.99868
2003	25.97176
2004	27.02427
2005	28.97671
2006	30.00375
2007	32.3
2008	34.8
2009	44.3
2010	48.5
2011	55.2
2012	59.5162
2013	63.8
2014	65.1
2015	69.19847
2016	73.29694