Year	Percent
1989	0.15861
1990	0.11595
1991	0.09918
1992	0.00001
1993	0.00001
1994	0.00001
1995	0.03954
1996	0.0043
1997	-0.00076
1998	0.0027
1999	0.24287
2000	-0.3408
2001	0.28661
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0