1967.0000000;-0.7016906
1968.0000000;0.1574399
1969.0000000;-0.4643500
1970.0000000;-0.8776435
1971.0000000;-0.9598057
1972.0000000;-0.1871002
1973.0000000;-1.3933249
1974.0000000;-1.0083700
1975.0000000;-0.4740874
1976.0000000;-1.1141237
1977.0000000;0.2987583
1978.0000000;0.4868458
1979.0000000;-0.3991189
1980.0000000;0.2380729
1981.0000000;-0.0697522
1982.0000000;-0.1904054
1983.0000000;-0.3280757
1984.0000000;0.5717958
1985.0000000;-0.5126573
1986.0000000;-1.3495684
1987.0000000;-0.5310646
1988.0000000;-0.1123861
1989.0000000;-1.3837503
1990.0000000;-1.0773641
1991.0000000;-0.8228362
1992.0000000;-0.6735015
1993.0000000;-0.5755842
1994.0000000;-0.3299767
1995.0000000;0.4200625
1996.0000000;-0.1797058
1997.0000000;-0.6626891
1998.0000000;-1.5204788
1999.0000000;-0.9368013
2000.0000000;-1.0577543
2001.0000000;0.6050075
2002.0000000;-0.6605488
2003.0000000;-2.5531991