Year	Percent
1974-01-01	0.602540000000000000
1975-01-01	0.256569999999999960
1976-01-01	1.403910000000000000
1977-01-01	0.712120000000000000
1978-01-01	1.705290000000000200
1979-01-01	1.705290000000000200
1980-01-01	0.107548000000000000
1981-01-01	1.019760000000000000
1982-01-01	2.011209999999999700
1983-01-01	2.011209999999999700
1984-01-01	3.074020000000000000
1985-01-01	0.271472000000000000
1986-01-01	1.790550000000000000
1987-01-01	0.906443000000000000
1988-01-01	0.197007000000000000
1989-01-01	0.450817000000000000
1990-01-01	-0.657205000000000000
1991-01-01	-2.442370000000000000
1992-01-01	-0.989212000000000100
1993-01-01	-0.463922000000000000
1994-01-01	0.081352000000000000
1995-01-01	0.333236000000000030
1996-01-01	0.387791000000000000
1997-01-01	0.983737999999999900
1998-01-01	-0.021342000000000000
1999-01-01	-0.199108999999999980
2000-01-01	0.866537000000000100
2001-01-01	0.191192000000000000
2002-01-01	-1.445330000000000000
2003-01-01	-0.206230000000000020
2004-01-01	0.717957000000000000
2005-01-01	-0.963220000000000100
2006-01-01	0.039424000000000000
2007-01-01	1.503850000000000000
2008-01-01	-0.261105000000000030
2009-01-01	1.774390000000000100
2010-01-01	2.462800000000000000
2011-01-01	0.455889000000000040
2012-01-01	0.513642000000000000
2013-01-01	0.214673000000000000
2014-01-01	-0.051819000000000004
2015-01-01	-0.127019000000000000
2016-01-01	-2.892890000000000000