Year	Percent
2002	30.14019
2003	27.76433
2004	23.22314
2005	17.15363
2006	7.77778
2007	5.11727
2008	3.08839
2009	-6.03774
2010	-8.76095
2011	-18.00819
2012	-13.04927
2013	-13.77551
2014	-13.01775
2015	-12.64737
2016	1.69082