Year	Percent
2002	-7.97665
2003	-11.00569
2004	-20.89844
2005	-23.06163
2006	-28.02419
2007	-22.30769
2008	-20.07105
2009	-3.83481
2010	-30.03472
2011	-39.02439
2012	-25
2013	-28.70515
2014	-39.19129
2015	-34.90137
2016	-28.41945