Year	Percent
1991-01-01	10.05399990081790
1992-01-01	10.13000011444090
1993-01-01	10.09399986267090
1994-01-01	10.04599952697750
1995-01-01	10.09000015258790
1996-01-01	10.04300022125240
1997-01-01	10.08100032806400
1998-01-01	10.04599952697750
1999-01-01	10.04300022125240
2000-01-01	10.02799987792970
2001-01-01	10.03600025177000
2002-01-01	10.03299999237060
2003-01-01	10.00599956512450
2004-01-01	9.96800041198730
2005-01-01	9.99899959564209
2006-01-01	9.96300029754639
2007-01-01	9.94699954986572
2008-01-01	9.94299983978271
2009-01-01	9.94200038909912
2010-01-01	9.93500041961670
2011-01-01	9.93099975585938
2012-01-01	9.93099975585938
2013-01-01	9.93000030517578
2014-01-01	9.90799999237061
2015-01-01	9.89099979400635
2016-01-01	9.92199993133545
2017-01-01	9.95400047302246