Year	Percent
1990	0
1994	0.00174
1995	0.00768
1996	0.01679
1997	0.03308
1998	0.08165
1999	0.16168
2000	0.40143
2001	0.79985
2002	1.1
2003	1.8
2004	2.1
2005	2.4
2006	2.4
2007	3
2008	3.5
2009	4
2010	6.4
2011	8.4
2012	12
2013	15.5
2014	16.36474
2015	22.74282
2016	23.11999