Year	Percent
1996-01-01	6.1028199999999995
1997-01-01	4.8267000000000000
1998-01-01	5.5661900000000000
1999-01-01	2.8410599999999997
2000-01-01	0.9921080000000000
2001-01-01	2.4182300000000000
2002-01-01	5.7770400000000000
2003-01-01	5.6006500000000000
2004-01-01	6.8378399999999990
2005-01-01	4.0299200000000000
2006-01-01	3.7659199999999995
2007-01-01	4.3024700000000000
2008-01-01	3.5694300000000000
2009-01-01	3.9011800000000000
2010-01-01	4.0791900000000005
2011-01-01	3.7246900000000003
2012-01-01	3.5015600000000000
2013-01-01	3.2382800000000000
2014-01-01	3.4360199999999996
2015-01-01	3.3135500000000000
2016-01-01	3.3102699999999996