Year	Percent
2003-01-01	2.71459497159544
2004-01-01	2.39807540466812
2005-01-01	2.06988394412365
2006-01-01	2.33833603239317
2007-01-01	1.85278337200078
2008-01-01	2.41134359689848
2009-01-01	5.80089998267773
2010-01-01	6.07389136095300
2011-01-01	5.62251012481318
2012-01-01	4.78605295551450
2013-01-01	4.34495250742091