1967.0000000;-1.3755717
1968.0000000;-0.5448247
1969.0000000;-0.3787308
1970.0000000;-1.3105042
1971.0000000;-1.4998081
1972.0000000;-0.5340415
1973.0000000;-1.7534897
1974.0000000;-1.0977757
1975.0000000;-0.0783872
1976.0000000;-0.9955085
1977.0000000;0.5430313
1978.0000000;0.5025772
1979.0000000;-0.9624839
1980.0000000;0.3512446
1981.0000000;0.0664703
1982.0000000;-0.3930989
1983.0000000;-0.6905971
1984.0000000;0.3851451
1985.0000000;-0.4488671
1986.0000000;-1.4902917
1987.0000000;-1.2050771
1988.0000000;-0.8322002
1989.0000000;-1.7047886
1990.0000000;-1.7653898
1991.0000000;-1.7496545
1992.0000000;-2.0151470
1993.0000000;-0.8129848
1994.0000000;-0.6842232
1995.0000000;0.2865090
1996.0000000;-0.5332545
1997.0000000;-1.0836821
1998.0000000;-1.9743469
1999.0000000;-0.9723862
2000.0000000;-1.5275152
2001.0000000;0.6489634
2002.0000000;-0.4154796
2003.0000000;-2.5297608