Year	Percent
1993	0.01145
1994	0.04034
1995	0.00186
1996	-0.00701
1997	0.01486
1998	0.01511
1999	0.00659
2000	0.00157
2001	0.00243
2002	-1.41289
2003	0.00841
2004	0.00562
2005	0.00828
2006	0.00812
2007	0.03357
2008	0.05036
2009	0.20789
2010	0.08843
2011	0.20321
2012	0.23674
2013	0.34716
2014	0.09313
2015	0.18882
2016	0.25753
2017	0.12454