1967.0000000;-1.6173286
1968.0000000;-0.8112226
1969.0000000;-0.4146815
1970.0000000;-1.6073849
1971.0000000;-1.6793046
1972.0000000;-0.5431173
1973.0000000;-2.0506997
1974.0000000;-1.2087876
1975.0000000;0.0129477
1976.0000000;-1.1071312
1977.0000000;0.6503759
1978.0000000;0.5779629
1979.0000000;-1.0393876
1980.0000000;0.4106516
1981.0000000;0.0865869
1982.0000000;-0.4677085
1983.0000000;-0.8430739
1984.0000000;0.4029422
1985.0000000;-0.8296959
1986.0000000;-1.6045221
1987.0000000;-1.4718459
1988.0000000;-0.9120973
1989.0000000;-1.8026611
1990.0000000;-1.9474697
1991.0000000;-1.8940389
1992.0000000;-2.2323909
1993.0000000;-0.7872500
1994.0000000;-0.7399561
1995.0000000;0.3601774
1996.0000000;-0.7295756
1997.0000000;-1.2293247
1998.0000000;-2.2338362
1999.0000000;-1.0678802
2000.0000000;-1.7215101
2001.0000000;0.7260242
2002.0000000;-0.6557838
2003.0000000;-2.8357227