1967.0000000;-1.3584825
1968.0000000;0.8251406
1969.0000000;-0.3917791
1970.0000000;-0.8601345
1971.0000000;-0.6535630
1972.0000000;-0.0250252
1973.0000000;-1.1785340
1974.0000000;-0.9984171
1975.0000000;-0.4547932
1976.0000000;-1.1215494
1977.0000000;0.7173469
1978.0000000;0.2738791
1979.0000000;-0.4032512
1980.0000000;-0.3321073
1981.0000000;-0.9959688
1982.0000000;-0.7484654
1983.0000000;-0.2206851
1984.0000000;0.3483417
1985.0000000;-0.9793339
1986.0000000;-1.3371242
1987.0000000;-0.5278711
1988.0000000;-0.5066035
1989.0000000;-1.5872512
1990.0000000;-0.6506405
1991.0000000;-1.1504214
1992.0000000;-0.7577897
1993.0000000;-0.8363521
1994.0000000;-0.5106188
1995.0000000;0.0551126
1996.0000000;-0.0792380
1997.0000000;-0.2799798
1998.0000000;-1.6079644
1999.0000000;-1.0361286
2000.0000000;-1.2193526
2001.0000000;0.4451164
2002.0000000;-0.4902751
2003.0000000;-1.9681826
2004.0000000;-1.9417782
2005.0000000;-2.1642694
2006.0000000;-1.5328771
2007.0000000;-1.2959521
2008.0000000;-0.7596363
2009.0000000;-1.6048923
2010.0000000;-0.7312971
2011.0000000;-1.9815898
2012.0000000;-1.7636720
2013.0000000;-0.8056626
2014.0000000;-0.8961805
2015.0000000;-1.6762758