Year	Percent
2007-01-01	12.65960
2008-01-01	9.65698
2009-01-01	13.70500
2010-01-01	14.91550
2011-01-01	12.14230
2012-01-01	12.52460
2013-01-01	13.25370
2014-01-01	14.67920
2015-01-01	16.61540
2016-01-01	17.23170