Year	Percent
1996-01-01	88.85060000000000
1997-01-01	89.42910000000000
1998-01-01	89.62899999999999
1999-01-01	89.15430000000000
2000-01-01	89.17830000000000
2001-01-01	88.42700000000000
2002-01-01	89.52710000000000
2003-01-01	91.60910000000000
2004-01-01	91.40270000000000
2005-01-01	91.87700000000001
2006-01-01	91.73670000000000
2007-01-01	91.41810000000000
2008-01-01	91.20620000000000
2009-01-01	91.52470000000000
2010-01-01	91.25740000000000
2011-01-01	92.64790000000000
2012-01-01	92.70740000000000
2013-01-01	92.49180000000000
2014-01-01	92.64620000000000
2015-01-01	94.97420000000000
2016-01-01	85.91230000000000