Year	Ratio
2009-01-01	1.02810001373291
2010-01-01	1.05633997917175
2011-01-01	1.03899002075195
2012-01-01	1.07579004764557
2013-01-01	1.06233000755310
2014-01-01	1.06456005573273
2015-01-01	1.06507003307343