Year	Percent
1995-01-01	7.05940648425000
1996-01-01	6.54174779100000
1997-01-01	7.65012141725000
1998-01-01	7.95838162800000
1999-01-01	8.15499487525000
2000-01-01	7.97679814300000
2001-01-01	8.66719001650000
2002-01-01	9.30877803025000
2003-01-01	9.95811777650000
2004-01-01	10.02455721125000
2005-01-01	8.31149768500000
2006-01-01	7.49318669000000
2007-01-01	6.79323007725000
2008-01-01	5.65469605950000
2009-01-01	6.93663316900000
2010-01-01	5.81030259925000
2011-01-01	5.06650497425000
2012-01-01	6.17500000000000
2013-01-01	5.84166666666667
2014-01-01	5.19166666666667
2015-01-01	4.85000000000000
2016-01-01	4.45833333333333
2017-01-01	3.85833333333333