Year	Percent
1995-01-01	123.905000000000000
1996-01-01	90.480600000000000
1997-01-01	84.412400000000000
1998-01-01	78.517800000000000
1999-01-01	83.415100000000000
2000-01-01	82.471100000000000
2001-01-01	67.236900000000000
2002-01-01	60.242900000000000
2003-01-01	66.269300000000000
2004-01-01	69.810600000000000
2005-01-01	65.386300000000000
2006-01-01	73.015400000000000
2007-01-01	84.012300000000000
2008-01-01	71.153700000000000
2009-01-01	57.586000000000006
2010-01-01	49.965900000000000
2011-01-01	46.097800000000000
2012-01-01	43.315800000000000
2013-01-01	37.671200000000000
2014-01-01	37.076800000000000
2015-01-01	47.405400000000000
2016-01-01	45.623800000000000