Year	Percent
1991	0.765
1992	0.605
1993	0
1994	0.591
1995	0.449
2006	1.1593
2007	1.2823
2008	1.4878
2010	0.4434
2011	1.126
2012	0.7107
2013	0.8468
2014	0.6715
2015	1.7708
2016	0.8883
2017	0.6324