Year	Percent
1999-01-01	2.7253000000000000
2000-01-01	1.1779500000000000
2001-01-01	0.7557189999999999
2002-01-01	0.7815190000000000
2003-01-01	1.5144100000000000
2004-01-01	1.4287500000000000
2005-01-01	1.2443799999999998
2006-01-01	2.0662800000000000
2007-01-01	2.3419400000000000
2008-01-01	0.6865040000000000
2009-01-01	1.0387200000000000
2010-01-01	1.5129100000000000
2011-01-01	0.7637200000000000
2012-01-01	0.6146390000000000
2013-01-01	0.8672110000000001
2014-01-01	1.7054000000000000
2015-01-01	1.4751600000000000
2016-01-01	1.8578599999999998