Year	Percent
1995-01-01	6.89858937700000
1996-01-01	6.69997166225000
1997-01-01	7.70869376425000
1998-01-01	8.57127460425000
1999-01-01	8.92146980750000
2000-01-01	8.80279813575000
2001-01-01	9.38075919425000
2002-01-01	10.33334951775000
2003-01-01	10.74909469050000
2004-01-01	10.41083602500000
2005-01-01	9.02251410750000
2006-01-01	8.42656563625000
2007-01-01	7.33365074175000
2008-01-01	6.11366020250000
2009-01-01	7.57086402500000
2010-01-01	6.66117603200000
2011-01-01	5.62842605975000
2012-01-01	6.86666666666667
2013-01-01	6.24166666666667
2014-01-01	5.92500000000000
2015-01-01	5.27500000000000
2016-01-01	4.83333333333333
2017-01-01	4.24166666666667