Year	Percent
1996-01-01	10.5339000000000000
1997-01-01	8.2109500000000000
1998-01-01	6.9991699999999994
1999-01-01	9.0154500000000000
2000-01-01	9.8588200000000000
2001-01-01	6.5969500000000000
2002-01-01	8.2428500000000000
2003-01-01	7.3534000000000000
2004-01-01	7.1019800000000000
2005-01-01	7.2499500000000000
2006-01-01	6.1255000000000000
2007-01-01	5.9760599999999995
2008-01-01	2.4769400000000004
2009-01-01	4.3911400000000000
2010-01-01	4.2473400000000000
2011-01-01	3.9560199999999996
2012-01-01	3.3500699999999997
2013-01-01	4.5030300000000000
2014-01-01	4.1303600000000000
2015-01-01	5.6239099999999995
2016-01-01	3.4551300000000005