Year	Percent
1996-01-01	5.4409199999999990
1997-01-01	4.6990099999999995
1998-01-01	4.0706800000000000
1999-01-01	3.9253199999999997
2000-01-01	3.7589300000000003
2001-01-01	9.2056000000000000
2002-01-01	3.0280200000000000
2003-01-01	1.9185100000000000
2004-01-01	2.3595400000000000
2005-01-01	2.5180400000000000
2006-01-01	3.2672000000000000
2007-01-01	3.8637099999999998
2008-01-01	3.8429100000000000
2009-01-01	5.2005300000000005
2010-01-01	4.8751800000000000
2011-01-01	5.0418600000000000
2012-01-01	5.7847200000000000
2013-01-01	5.7029700000000000
2014-01-01	5.9127800000000010
2015-01-01	9.2025300000000000
2016-01-01	10.3528000000000000