Year	Percent Change
2007-01-01	0.8890
2008-01-01	5.2319
2009-01-01	-0.2168
2010-01-01	2.9892
2011-01-01	3.5786
2012-01-01	26.3566
2013-01-01	50.2058
2014-01-01	31.0902