1967.0000000;-0.3603929
1968.0000000;-0.2317378
1969.0000000;-0.3817344
1970.0000000;-0.4652317
1971.0000000;-1.2289121
1972.0000000;-0.5389863
1973.0000000;-0.8484188
1974.0000000;-0.7025311
1975.0000000;-0.2538723
1976.0000000;-1.3345160
1977.0000000;0.4931026
1978.0000000;0.8448958
1979.0000000;0.1972541
1980.0000000;0.7939876
1981.0000000;0.4400663
1982.0000000;0.1661445
1983.0000000;-0.0919667
1984.0000000;0.5170447
1985.0000000;-0.1677660
1986.0000000;-1.4872322
1987.0000000;0.1980375
1988.0000000;0.1065202
1989.0000000;-1.7218769
1990.0000000;-1.5763066
1991.0000000;-0.6037447
1992.0000000;-0.7198784
1993.0000000;-0.5263631
1994.0000000;-0.3432889
1995.0000000;0.9605386
1996.0000000;-0.1142666
1997.0000000;-0.6548961
1998.0000000;-1.2954967
1999.0000000;-0.7110338
2000.0000000;-0.7562280
2001.0000000;0.2852267
2002.0000000;-1.2211460
2003.0000000;-3.2679305
2004.0000000;-1.8880984
2005.0000000;-2.1983030
2006.0000000;-1.7811332
2007.0000000;-0.9782478
2008.0000000;-1.5981753
2009.0000000;-2.9476700
2010.0000000;-0.4088692
2011.0000000;-2.4318306
2012.0000000;-2.2284880
2013.0000000;-0.4720056
2014.0000000;-0.6163540
2015.0000000;-2.0469096