Year	Percent
1997-01-01	-3.095760000000000
1998-01-01	-26.668800000000000
1999-01-01	-9.633120000000000
2000-01-01	6.508030000000001
2001-01-01	11.813400000000000
2002-01-01	21.495300000000000
2003-01-01	21.842300000000000
2004-01-01	18.637999999999998
2005-01-01	17.555999999999997
2006-01-01	17.776700000000000
2007-01-01	22.532900000000000
2008-01-01	17.055999999999997
2009-01-01	20.588000000000000
2010-01-01	16.761900000000000
2011-01-01	14.277800000000000
2012-01-01	16.921400000000000
2013-01-01	13.876100000000000
2014-01-01	12.037800000000000
2015-01-01	12.253500000000000
2016-01-01	13.775300000000000