Year	Percent
2003-01-01	12.5320
2004-01-01	13.9897
2005-01-01	19.0084
2006-01-01	13.0029
2007-01-01	13.2986
2008-01-01	14.6147
2009-01-01	14.3499
2010-01-01	13.8415
2011-01-01	15.2409
2012-01-01	18.3777