Year	Percent
2010-01-01	4.80728249485859
2011-01-01	4.40674083290776
2012-01-01	4.48393991515183
2013-01-01	4.74668856049921
2014-01-01	4.82930334839711
2015-01-01	4.80018025793267
2016-01-01	4.91871057443227
2017-01-01	4.79711429962630