Year	Percent
1999-01-01	82.3137
2000-01-01	84.9238
2001-01-01	66.5724
2002-01-01	56.3507
2003-01-01	56.9071
2004-01-01	58.4995
2005-01-01	80.7778
2006-01-01	96.3546
2007-01-01	81.6302
2008-01-01	38.4132
2009-01-01	55.0904
2010-01-01	60.6624
2011-01-01	53.2065
2012-01-01	62.9757
2013-01-01	72.6645
2014-01-01	71.2575
2015-01-01	93.3104
2016-01-01	104.3960