Year	Percent
1991	0.10528
1992	-0.54306
1993	0.45221
1994	0
1995	0
1996	-0.14176
1997	0
1998	0
1999	-0.28787
2000	0.28064
2001	0.02944
2002	0.01908
2003	0
2004	0.02136
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0.742