Year	Percent
2008-01-01	5.42028
2009-01-01	6.36260
2010-01-01	7.69188
2011-01-01	6.59691
2012-01-01	12.70570
2013-01-01	13.03230
2014-01-01	12.88050
2015-01-01	13.31760
2016-01-01	18.53170