1967.0000000;-0.7499794
1968.0000000;-0.0521587
1969.0000000;-0.5333868
1970.0000000;-1.0064294
1971.0000000;-1.1463037
1972.0000000;-0.3533485
1973.0000000;-1.7050059
1974.0000000;-1.1251578
1975.0000000;-0.3891926
1976.0000000;-1.3045323
1977.0000000;0.5368324
1978.0000000;0.5592333
1979.0000000;-0.1860153
1980.0000000;0.4503739
1981.0000000;0.1341440
1982.0000000;-0.1406135
1983.0000000;-0.2966968
1984.0000000;0.3328432
1985.0000000;-0.5544937
1986.0000000;-1.4912882
1987.0000000;-0.4780575
1988.0000000;-0.1975908
1989.0000000;-1.5291860
1990.0000000;-1.4273734
1991.0000000;-0.7538539
1992.0000000;-0.5663221
1993.0000000;-0.5766489
1994.0000000;-0.5421118
1995.0000000;0.4797143
1996.0000000;-0.2389424
1997.0000000;-1.0157710
1998.0000000;-1.7529173
1999.0000000;-1.0090584
2000.0000000;-1.2823991
2001.0000000;0.1763242
2002.0000000;-1.6996973
2003.0000000;-3.0701933