Year	Percent
1996-01-01	40.237300000000000
1997-01-01	33.333300000000000
1998-01-01	0.000000000000000
1999-01-01	10.921200000000000
2000-01-01	10.742200000000000
2001-01-01	16.000000000000000
2002-01-01	13.789300000000000
2003-01-01	20.520400000000000
2004-01-01	18.986700000000000
2005-01-01	30.343300000000000
2006-01-01	29.269700000000000
2007-01-01	28.906300000000000
2008-01-01	26.305500000000000
2009-01-01	21.336900000000000
2010-01-01	21.417500000000000
2011-01-01	21.313200000000000
2012-01-01	20.410800000000000
2013-01-01	18.983200000000000
2014-01-01	18.125999999999998
2015-01-01	10.595800000000000
2016-01-01	-15.208600000000000