Year	Percent
1988	0.01244
2002	0.00618
2003	0.00011
2004	0.06049
2005	0.68922
2006	0.40244
2007	0.29641
2008	-0.00734
2009	0.01692
2010	0
2011	1.48307
2012	1.42952
2013	-1.34678
2014	-1.19943