Year	Percent
1998-01-01	61.0000
1999-01-01	58.0000
2000-01-01	57.0000
2001-01-01	57.0000
2002-01-01	51.8000
2003-01-01	52.8000
2004-01-01	54.2000
2005-01-01	51.6000
2006-01-01	50.8000
2007-01-01	41.0000
2008-01-01	54.9000
2009-01-01	49.3000
2010-01-01	48.8038
2011-01-01	47.5300
2012-01-01	47.1054
2013-01-01	44.9407
2014-01-01	40.4258
2015-01-01	42.1998
2016-01-01	43.5032