Year	Percent
2003	-11.70547
2004	-9.56496
2005	-17.58661
2006	-14.08762
2007	-22.56252
2008	-33.41496
2009	-24.29513
2010	-42.36042
2011	-54.55208
2012	-25.95442
2013	-20.62857
2014	-10.15835
2015	-8.89907
2016	-6.95679