Year	Percent
1999-01-01	82.3858
2000-01-01	79.2000
2001-01-01	88.0000
2002-01-01	85.4161
2003-01-01	93.0814
2004-01-01	88.1053
2005-01-01	73.1735
2006-01-01	74.8712
2007-01-01	75.1584
2008-01-01	58.9603
2009-01-01	65.8212
2010-01-01	62.6241
2011-01-01	63.4941
2012-01-01	63.9541
2013-01-01	56.5437
2014-01-01	68.2679
2015-01-01	65.8791
2016-01-01	63.8615