Year	Percent
1989	-0.06519
1990	-1.07701
1991	2.17072
1992	1.99096
1993	-0.31294
1994	-3.16631
1995	-3.0832
1996	-2.55278
1997	-3.05896
1998	-2.27403
1999	5.45587
2000	5.03146
2001	1.62643
2002	4.38023
2003	2.56935
2004	7.51348
2005	0.83746
2006	-2.84718
2007	-5.51856
2008	-7.98782
2009	-1.67472
2010	-4.03328
2011	-6.60912
2012	-20.95682
2013	-9.23623
2014	-3.50586
2015	-1.8863
2016	-6.23125
2017	-6.31995