Year	Percent
1996-01-01	17.148700000000000
1997-01-01	18.281900000000000
1998-01-01	13.205600000000000
1999-01-01	11.948200000000000
2000-01-01	21.329400000000000
2001-01-01	12.877200000000000
2002-01-01	10.957100000000000
2003-01-01	11.369300000000000
2004-01-01	9.175000000000000
2005-01-01	12.140300000000000
2006-01-01	10.761200000000000
2007-01-01	8.389660000000001
2008-01-01	-5.888890000000000
2009-01-01	16.669900000000000
2010-01-01	10.181300000000000
2011-01-01	5.981170000000000
2012-01-01	13.774300000000000
2013-01-01	9.975539999999999
2014-01-01	8.133939999999999
2015-01-01	8.543540000000000
2016-01-01	11.663300000000000