Year	Percent
1996-01-01	68.5129
1997-01-01	68.2712
1998-01-01	97.4311
1999-01-01	97.4311
2000-01-01	97.4311
2001-01-01	97.4311
2002-01-01	97.4311
2003-01-01	97.4311
2004-01-01	97.4311
2005-01-01	97.4311
2006-01-01	97.4311
2007-01-01	97.4311
2008-01-01	97.4311
2009-01-01	79.3139
2010-01-01	74.8619
2011-01-01	73.8748
2012-01-01	74.1246
2013-01-01	74.4362
2014-01-01	74.4125
2015-01-01	84.6012
2016-01-01	83.7722