Year	Percent
1998-01-01	29.2000
1999-01-01	37.9000
2000-01-01	47.2000
2001-01-01	47.1000
2002-01-01	62.9000
2003-01-01	72.8000
2004-01-01	79.8000
2005-01-01	83.7000
2006-01-01	82.7000
2007-01-01	86.5000
2008-01-01	97.9000
2009-01-01	44.8000
2010-01-01	46.6209
2011-01-01	50.4164
2012-01-01	55.2689
2013-01-01	52.4325
2014-01-01	49.4369
2015-01-01	52.9085
2016-01-01	53.5212