Year	Percent
1995-01-01	4.78348227625000
1996-01-01	4.82189465250000
1997-01-01	5.11584235325000
1998-01-01	6.61601252850000
1999-01-01	6.72906248300000
2000-01-01	6.81343016075000
2001-01-01	6.16349661500000
2002-01-01	6.57499789275000
2003-01-01	6.66211816850000
2004-01-01	7.59298274525000
2005-01-01	7.29832503225000
2006-01-01	6.53327179425000
2007-01-01	5.31861151525000
2008-01-01	4.49018116900000
2009-01-01	5.36694549925000
2010-01-01	4.83983406075000
2011-01-01	4.20825489950000
2012-01-01	4.79166666666667
2013-01-01	4.43333333333333
2014-01-01	4.08333333333333
2015-01-01	3.92500000000000
2016-01-01	3.79166666666667
2017-01-01	3.45833333333333