Year	Percent
1990	0
1995	0.00286
1996	0.00463
1997	0.01032
1998	0.06529
1999	0.10554
2000	0.16371
2001	0.23795
2002	0.38409
2003	0.46485
2004	0.71997
2005	1.74221
2006	2.52936
2007	3.67197
2008	7.9
2009	9.78
2010	12.5
2011	13.01354
2012	14.1
2013	15.5
2014	16.9
2015	17.83486
2016	21.87617