Year	Percent
1996-01-01	4.48021000000000000
1997-01-01	4.05939000000000050
1998-01-01	3.97701000000000000
1999-01-01	3.30796000000000000
2000-01-01	2.87423000000000000
2001-01-01	2.28254000000000000
2002-01-01	2.22162999999999980
2003-01-01	2.16992000000000030
2004-01-01	2.17006000000000000
2005-01-01	2.32711000000000000
2006-01-01	1.59893000000000000
2007-01-01	1.94366000000000000
2008-01-01	0.37090500000000004
2009-01-01	2.45172000000000000
2010-01-01	5.59875999999999950
2011-01-01	1.96564000000000000
2012-01-01	2.57999000000000000
2013-01-01	5.64091000000000000
2014-01-01	2.26545000000000000
2015-01-01	3.01854000000000020
2016-01-01	2.97932000000000000