Year	Percent change
2001	-8.148
2002	0.184
2003	-1.426
2004	7.26
2005	-0.629
2006	-3.941
2007	5.806
2008	1.478
2009	-3.108
2010	10.746
2011	12.022
2012	-1.548
2013	-5.397
2014	2.861
2015	8.14
2016	6.676
2017	-1.127