Year	Percent
1996-01-01	70.586700000000000
1997-01-01	61.874100000000000
1998-01-01	6.606850000000000
1999-01-01	11.333900000000000
2000-01-01	18.283200000000000
2001-01-01	10.958800000000000
2002-01-01	15.683200000000000
2003-01-01	17.063000000000000
2004-01-01	18.867200000000000
2005-01-01	17.828000000000000
2006-01-01	19.543300000000000
2007-01-01	24.332600000000000
2008-01-01	19.271100000000000
2009-01-01	8.955390000000000
2010-01-01	6.659920000000000
2011-01-01	5.974120000000000
2012-01-01	3.965070000000000
2013-01-01	3.315550000000000
2014-01-01	3.315550000000000
2015-01-01	4.480169999999999
2016-01-01	9.525089999999999