1967.0000000;-0.8570293
1968.0000000;0.1748354
1969.0000000;-0.7273396
1970.0000000;-0.9381402
1971.0000000;-0.9428529
1972.0000000;-0.0522700
1973.0000000;-1.7056794
1974.0000000;-1.0794905
1975.0000000;0.0688442
1976.0000000;-1.1239579
1977.0000000;0.6706245
1978.0000000;0.5526268
1979.0000000;-0.4126829
1980.0000000;0.2837636
1981.0000000;-0.0944589
1982.0000000;-0.2526649
1983.0000000;-0.2066757
1984.0000000;0.4429045
1985.0000000;-0.5406365
1986.0000000;-1.4246730
1987.0000000;-0.6141497
1988.0000000;-0.0999858
1989.0000000;-1.4908607
1990.0000000;-1.3738513
1991.0000000;-0.8468111
1992.0000000;-0.9328982
1993.0000000;-0.4834713
1994.0000000;-0.1987571
1995.0000000;0.3751971
1996.0000000;-0.8117311
1997.0000000;-1.2062805
1998.0000000;-1.8307250
1999.0000000;-1.0528636
2000.0000000;-1.5112798
2001.0000000;0.7533275
2002.0000000;-1.8780917
2003.0000000;-3.2193327
2004.0000000;-1.9217653
2005.0000000;-2.2373028
2006.0000000;-2.2098074
2007.0000000;-1.6033170
2008.0000000;-1.2366524
2009.0000000;-2.4590039
2010.0000000;-0.6400359
2011.0000000;-2.2848105
2012.0000000;-1.8305068
2013.0000000;-0.4038106
2014.0000000;-0.4943785
2015.0000000;-1.8131523