Year	Percent
1995	6.17117
1996	4.33886
1997	4.82963
1998	18.70255
1999	2.14331
2000	0.38331
2001	64.36528
2002	4.09631
2003	1.07746
2004	1.65962
2005	0.26092
2006	0.33746
2007	2.42359
2008	2.4957
2010	0.64575
2011	4.24157
2012	0.1793
2013	7.32119
2016	1.25046