Year	Percent change
2001	4.549
2002	-0.719
2003	-6.394
2004	7.91
2005	1.819
2006	-3.879
2007	6.642
2008	4.248
2009	-3.405
2010	11.753
2011	8.455
2012	-5.929
2013	-4.033
2014	5.082
2015	7.233
2016	3.393
2017	-3.447