1967.0000000;-1.4229296
1968.0000000;0.6474587
1969.0000000;-0.3908043
1970.0000000;-0.5547987
1971.0000000;-0.9012140
1972.0000000;0.2288700
1973.0000000;-1.0429401
1974.0000000;-0.8214269
1975.0000000;0.1036609
1976.0000000;-1.1910343
1977.0000000;0.3466372
1978.0000000;0.3576841
1979.0000000;-0.7378947
1980.0000000;-0.1424845
1981.0000000;-0.4616019
1982.0000000;-0.8068393
1983.0000000;-0.4091848
1984.0000000;0.8691574
1985.0000000;-0.3072246
1986.0000000;-1.3180404
1987.0000000;-0.4373986
1988.0000000;0.1090008
1989.0000000;-1.5749613
1990.0000000;-0.9697098
1991.0000000;-1.2786226
1992.0000000;-0.8289641
1993.0000000;-0.5665143
1994.0000000;-0.4172255
1995.0000000;0.4515625
1996.0000000;-0.2146938
1997.0000000;-0.4121705
1998.0000000;-1.5989256
1999.0000000;-0.4427151
2000.0000000;-0.9523681
2001.0000000;0.6324763
2002.0000000;-0.0219573
2003.0000000;-2.3652258
2004.0000000;-2.1006742
2005.0000000;-2.1099763
2006.0000000;-1.7942040
2007.0000000;-1.2442737
2008.0000000;-1.0568244
2009.0000000;-1.9921173
2010.0000000;-0.8941526
2011.0000000;-2.1126089
2012.0000000;-1.9603422
2013.0000000;-0.5384855
2014.0000000;-0.9097387
2015.0000000;-1.9084245