Year	Percent
1996-01-01	7.468150000000000
1997-01-01	6.811500000000000
1998-01-01	6.898810000000001
1999-01-01	6.602119999999999
2000-01-01	6.399640000000000
2001-01-01	6.088240000000000
2002-01-01	6.427690000000000
2003-01-01	8.891140000000000
2004-01-01	7.470370000000000
2005-01-01	7.999840000000000
2006-01-01	8.297839999999999
2007-01-01	7.847689999999999
2008-01-01	3.538100000000000
2009-01-01	7.426870000000000
2010-01-01	6.319800000000000
2011-01-01	5.372450000000000
2012-01-01	5.495660000000000
2013-01-01	3.833220000000000
2014-01-01	3.649690000000000
2015-01-01	3.182680000000000
2016-01-01	8.336380000000000