Year	Percent
1996-01-01	13.113000000000000
1997-01-01	8.379389999999999
1998-01-01	8.532470000000000
1999-01-01	18.350800000000000
2000-01-01	20.524100000000000
2001-01-01	14.125200000000000
2002-01-01	15.899400000000000
2003-01-01	27.005900000000000
2004-01-01	-1.225610000000000
2005-01-01	27.640500000000000
2006-01-01	17.319000000000003
2007-01-01	22.982500000000000
2008-01-01	14.216800000000000
2009-01-01	5.372590000000000
2010-01-01	11.578800000000000
2011-01-01	12.703000000000000
2012-01-01	13.613600000000000
2013-01-01	12.692200000000000
2014-01-01	13.525900000000000
2015-01-01	14.840300000000000
2016-01-01	14.033600000000000