Year	Percent
2001-01-01	2.2323500000000000
2002-01-01	1.9961500000000000
2003-01-01	1.9094700000000000
2004-01-01	1.7702200000000001
2005-01-01	3.8930200000000000
2006-01-01	4.9297600000000000
2007-01-01	4.4689700000000000
2008-01-01	4.8531100000000000
2009-01-01	3.9738000000000000
2010-01-01	0.7690390000000000
2011-01-01	0.8551930000000000
2012-01-01	0.7430450000000000
2013-01-01	0.7636880000000000
2014-01-01	0.8522020000000000