Year	Percent
2005	0
2006	0.31048
2007	0.20611
2008	0.22243
2009	-0.35066
2010	0.1724
2011	0.07878
2012	0.60197
2013	1.36666
2014	0.79122
2015	0.35683
2016	0.48388
2017	0.58201