Year	Percent
2005-01-01	2.0799900000000000
2006-01-01	3.0944599999999998
2007-01-01	4.0774099999999995
2008-01-01	4.7385300000000000
2009-01-01	5.6455199999999990
2010-01-01	5.4409600000000000
2011-01-01	4.9631000000000000