Year	Percent
1996-01-01	6.060919999999999
1997-01-01	10.841700000000000
1998-01-01	9.903160000000000
1999-01-01	9.023110000000000
2000-01-01	8.374039999999999
2001-01-01	8.833269999999999
2002-01-01	8.733570000000000
2003-01-01	7.588139999999999
2004-01-01	7.681139999999999
2005-01-01	8.983870000000000
2006-01-01	10.482999999999999
2007-01-01	9.575250000000000
2008-01-01	9.527080000000000
2009-01-01	7.779060000000000
2010-01-01	7.743390000000000
2011-01-01	7.756650000000000
2012-01-01	7.371660000000000
2013-01-01	8.187220000000000
2014-01-01	7.327240000000000
2015-01-01	6.157019999999999
2016-01-01	6.490280000000000