Year	Percent
1996-01-01	14.851300000000000
1997-01-01	16.893000000000000
1998-01-01	16.893000000000000
1999-01-01	21.292600000000000
2000-01-01	15.569300000000000
2001-01-01	15.531200000000000
2002-01-01	13.301800000000000
2003-01-01	16.408700000000000
2004-01-01	11.711900000000000
2005-01-01	7.709169999999999
2006-01-01	7.927960000000001
2007-01-01	8.299170000000000
2008-01-01	8.797170000000000
2009-01-01	7.746580000000001
2010-01-01	5.587900000000000
2011-01-01	8.953310000000000
2012-01-01	9.572130000000000
2013-01-01	8.590180000000000
2014-01-01	11.046000000000000
2015-01-01	12.498400000000000
2016-01-01	7.839430000000000