Year	Percent
1990	0.53371
1991	0.23996
1992	0
1993	0
1994	0
1995	0.0165
1996	0.44245
1997	-0.19128
1999	0.25064
2002	0.45162
2003	0.54183
2004	1.26087
2005	0.75847
2006	0.68202
2007	6.17476
2008	0.24985
2009	1.44689
2010	4.74773
2011	1.71088
2012	1.33689
2013	1.13625
2014	1.21016
2015	0.31327
2016	0.5371
2017	-0.65903