Year	Percent
2005-01-01	0.0000
2006-01-01	21.8401
2007-01-01	24.5993
2008-01-01	22.7626
2009-01-01	23.1826
2010-01-01	21.9590
2011-01-01	21.1735
2012-01-01	21.5037
2013-01-01	21.9761