Year	Percent
1996-01-01	26.948700000000000
1997-01-01	12.942500000000000
1998-01-01	49.000600000000000
1999-01-01	43.579200000000000
2000-01-01	39.817900000000000
2001-01-01	20.317900000000000
2002-01-01	28.862700000000000
2003-01-01	32.747000000000000
2004-01-01	29.723800000000000
2005-01-01	17.352400000000000
2006-01-01	9.246310000000001
2007-01-01	24.191500000000000
2008-01-01	53.388700000000000
2009-01-01	42.354800000000000
2010-01-01	35.489700000000000
2011-01-01	29.405400000000000
2012-01-01	30.485300000000000
2013-01-01	31.961600000000000
2014-01-01	31.486300000000000
2015-01-01	27.026500000000000
2016-01-01	31.132100000000000