Year	Percent
1990	0
1995	0.01723
1996	0.07499
1997	0.14269
1998	0.23391
1999	1.10474
2000	3.70469
2001	4.42939
2002	6.82373
2003	7.89839
2004	8.86555
2005	11.4832
2006	14.84493
2007	17.66
2008	20.82
2009	27.72
2010	31.4
2011	38
2012	42.32
2013	45.9
2014	49.58
2015	54.21577
2016	63.87