Year	Percent
1996-01-01	3.0607200000000000
1997-01-01	6.2211000000000000
1998-01-01	6.1222600000000000
1999-01-01	6.1222600000000000
2000-01-01	6.1222600000000000
2001-01-01	7.8009600000000010
2002-01-01	7.8009600000000010
2003-01-01	7.8009600000000010
2004-01-01	4.8320700000000000
2005-01-01	4.7454300000000010
2006-01-01	5.0503599999999995
2007-01-01	10.1656000000000000
2008-01-01	7.9200600000000000
2009-01-01	7.6333100000000010
2010-01-01	6.7810399999999990
2011-01-01	7.0242800000000000
2012-01-01	7.5492100000000000
2013-01-01	7.6650899999999990
2014-01-01	7.6650899999999990
2015-01-01	7.6650899999999990
2016-01-01	6.5655000000000000