Year	Percent
1993	2.48039
1995	2.16254
1996	2.04581
1997	25.08973
1998	4.02342
1999	1.11269
2000	0.31616
2001	0.13677
2002	0.40066
2003	0.50514
2004	0.75647
2005	1.09051
2006	1.86852
2007	2.94588
2008	2.544
2009	1.49943
2010	0.95503
2011	24.80057
2012	4.95805
2013	2.37458
2014	1.70407
2015	5.26813