Year	Percent
1996-01-01	46.4798
1997-01-01	46.5361
1998-01-01	57.1313
1999-01-01	56.1313
2000-01-01	69.7798
2001-01-01	80.3396
2002-01-01	91.9286
2003-01-01	91.1123
2004-01-01	97.0639
2005-01-01	86.7853
2006-01-01	84.5001
2007-01-01	83.1400
2008-01-01	84.0834
2009-01-01	85.0575
2010-01-01	84.5106
2011-01-01	85.5973
2012-01-01	85.5031
2013-01-01	86.2633
2014-01-01	84.5427
2015-01-01	88.4257
2016-01-01	80.9289