Year	Percent
2004-01-01	14.9392000000000000
2005-01-01	7.4195300000000000
2006-01-01	2.9744900000000003
2007-01-01	8.6842700000000000
2008-01-01	12.3175000000000000
2009-01-01	9.4021000000000000
2010-01-01	15.2641000000000000
2011-01-01	14.2651000000000000
2012-01-01	16.5700000000000000