Year	Percent
1960	-4.82759
1961	-0.56818
1962	-3.09278
1963	0
1964	0.59701
1965	6.92168
1966	5.64103
1967	1.43113
1968	2.977
1969	1.26735
1970	-1.32075
1971	-1.1491
1972	0.54208
1973	0.9123
1974	-2.50868
1975	-3.49766
1976	-0.51937
1977	-2.7621
1978	-2.30761
1979	-4.33392
1980	-5.59846
1981	-3.82723
1982	-2.96492
1983	2.08501
1984	5.20517
1985	5.65648
1986	5.94644
1987	2.44275
1988	4.32196
1989	5.79418
1990	5.43577
1991	2.83243
1992	0.82211
1993	-0.43294
1994	-0.61521
1995	-0.10405
1996	-0.18848
1997	-2.7907
1998	-2.80019
1999	-3.19114
2000	-3.31754
2001	-2.70019
2002	1.21428
2003	3.10564
2004	2.7479
2005	1.93034
2006	-1.37657
2007	-1.02947
2008	-4.80205
2009	0.80401
2010	0.98695
2011	-0.40274
2012	-3.2219
2013	-3.01157
2014	-2.0023
2015	-0.37254
2016	1.54486
2017	3.12872