Year	Ratio
2009-01-01	1.03598999977112
2010-01-01	1.03540003299713
2011-01-01	1.03921997547150
2012-01-01	1.04656994342804
2013-01-01	1.01947999000549
2014-01-01	1.01396000385284
2015-01-01	1.01750004291534