Year	Percent
1998-01-01	19.30000000000000
1999-01-01	23.10000000000000
2000-01-01	27.70000000000000
2001-01-01	27.70000000000000
2002-01-01	27.70000000000000
2003-01-01	27.70000000000000
2004-01-01	27.70000000000000
2005-01-01	27.70000000000000
2006-01-01	80.90000000000000
2007-01-01	90.50000000000000
2008-01-01	84.40000000000000
2009-01-01	86.00000000000000
2010-01-01	118.51000000000000
2011-01-01	135.14400000000000
2012-01-01	122.68799999999999
2013-01-01	124.68400000000000
2014-01-01	126.09000000000000
2015-01-01	126.54000000000000
2016-01-01	118.94200000000001