Year	Percent
1998-01-01	58.6000
1999-01-01	46.6000
2000-01-01	53.9000
2001-01-01	54.7000
2002-01-01	60.6000
2003-01-01	63.9000
2004-01-01	70.4000
2005-01-01	76.7000
2006-01-01	77.8000
2007-01-01	86.1000
2008-01-01	74.7000
2009-01-01	71.0000
2010-01-01	66.7289
2011-01-01	66.7781
2012-01-01	71.8016
2013-01-01	78.4292
2014-01-01	79.8178
2015-01-01	84.9478
2016-01-01	85.0497