Year	Percent
1996-01-01	39.0000
1997-01-01	41.1126
1998-01-01	47.5687
1999-01-01	53.6232
2000-01-01	62.9032
2001-01-01	81.2500
2002-01-01	21.2766
2003-01-01	32.9412
2004-01-01	27.6279
2005-01-01	21.6896
2006-01-01	24.1290
2007-01-01	26.1122
2008-01-01	17.1179
2009-01-01	21.9752
2010-01-01	18.6839
2011-01-01	15.1195
2012-01-01	40.0487
2013-01-01	14.6378
2014-01-01	17.1300