Year	Percent
1996-01-01	84.6110
1997-01-01	87.8577
1998-01-01	88.2721
1999-01-01	91.0134
2000-01-01	90.1795
2001-01-01	92.2090
2002-01-01	69.7858
2003-01-01	80.4711
2004-01-01	86.4113
2005-01-01	91.2674
2006-01-01	90.8554
2007-01-01	93.9906
2008-01-01	92.9794
2009-01-01	92.7529
2010-01-01	92.6659
2011-01-01	93.1828
2012-01-01	90.9766
2013-01-01	91.2282
2014-01-01	92.3724
2015-01-01	90.4092
2016-01-01	90.6667