Year	Percent
1978-01-01	0.139456000000000000
1979-01-01	0.125628000000000000
1980-01-01	0.032484000000000000
1981-01-01	0.190653000000000000
1982-01-01	0.190653000000000000
1983-01-01	0.190653000000000000
1984-01-01	0.190653000000000000
1985-01-01	-0.070123000000000000
1986-01-01	-0.141525000000000000
1987-01-01	-0.022501000000000000
1988-01-01	-0.055465000000000000
1989-01-01	-0.146144000000000000
1990-01-01	0.014856000000000000
1991-01-01	0.382142000000000000
1992-01-01	0.172211000000000000
1993-01-01	4.994890000000000000
1994-01-01	0.969935000000000000
1995-01-01	1.024290000000000000
1996-01-01	1.320960000000000100
1997-01-01	0.064195000000000000
1998-01-01	-2.106380000000000000
1999-01-01	0.951951000000000000
2000-01-01	-0.654460000000000000
2001-01-01	-0.250840000000000000
2002-01-01	-0.271171999999999970
2003-01-01	-0.158323000000000000
2004-01-01	0.120249000000000000
2005-01-01	0.001006000000000000
2006-01-01	0.239081000000000000
2007-01-01	0.127986000000000000
2008-01-01	-1.825160000000000000
2009-01-01	0.021922999999999998
2010-01-01	0.175390000000000020
2011-01-01	-0.011883000000000000
2012-01-01	-0.015568000000000000
2013-01-01	-0.046918000000000000
2014-01-01	-0.174419000000000020
2015-01-01	-0.126558000000000000
2016-01-01	0.896465000000000000