Year	Percent
1992	1.04008
1994	0.02598
2000	2.08853
2001	0.82463
2002	22.5252
2005	19.17658
2006	3.14502
2008	3.3508
2010	3.88203
2011	2.12171
2012	20.05124
2013	10.01481
2014	5.61199
2015	7.20551
2016	2.52623