Year	Percent
2000-01-01	3.38701107246558
2001-01-01	3.09630370193230
2002-01-01	3.16921235458739
2003-01-01	3.10210500986597
2004-01-01	2.85797040600414
2005-01-01	2.90720844399924
2006-01-01	3.25420854876918
2007-01-01	3.15485751010162
2008-01-01	3.48204057355302
2009-01-01	4.79057560139792
2010-01-01	4.80975971904014
2011-01-01	4.83540774980252
2012-01-01	4.66370122815874
2013-01-01	4.45407322305882
2014-01-01	3.55553846761521