Year	Percent
2002	0.01291
2003	0.40874
2004	0.16804
2005	0.7514
2006	0.73797
2007	-0.08837
2008	0.95951
2009	0.22574
2010	2.55455
2011	1.80002
2012	1.15407
2013	1.18279
2014	1.67287
2015	0.48615
2016	0.53363
2017	3.33678
