Year	Percent
1996-01-01	28.722300000000000
1997-01-01	32.633200000000000
1998-01-01	29.660000000000000
1999-01-01	35.562100000000000
2000-01-01	37.469300000000000
2001-01-01	20.901999999999997
2002-01-01	27.015000000000000
2003-01-01	40.423900000000000
2004-01-01	73.862700000000000
2005-01-01	73.159400000000000
2006-01-01	78.048000000000000
2007-01-01	72.210200000000000
2008-01-01	66.069100000000000
2009-01-01	79.510100000000000
2010-01-01	82.102300000000000
2011-01-01	57.784600000000000
2012-01-01	53.932700000000000
2013-01-01	51.915100000000000
2014-01-01	68.532500000000000
2015-01-01	65.518000000000000
2016-01-01	16.004900000000000