1967.0000000;-1.7783884
1968.0000000;0.4759057
1969.0000000;-0.8535266
1970.0000000;-1.1114376
1971.0000000;-1.4378526
1972.0000000;-0.3055236
1973.0000000;-1.7011523
1974.0000000;-1.4205120
1975.0000000;-0.2179831
1976.0000000;-1.5079408
1977.0000000;0.4390160
1978.0000000;0.3188652
1979.0000000;-1.0834899
1980.0000000;-0.1151042
1981.0000000;-1.1293305
1982.0000000;-0.8967936
1983.0000000;-0.8508476
1984.0000000;0.6592506
1985.0000000;-0.9607881
1986.0000000;-1.5300366
1987.0000000;-0.9189879
1988.0000000;-0.4483509
1989.0000000;-1.7371790
1990.0000000;-1.5161623
1991.0000000;-1.5934596
1992.0000000;-1.2158270
1993.0000000;-1.0984256
1994.0000000;-0.9754593
1995.0000000;0.1810223
1996.0000000;-1.1198156
1997.0000000;-1.0043079
1998.0000000;-1.9335506
1999.0000000;-0.9735614
2000.0000000;-1.2726333
2001.0000000;0.1558460
2002.0000000;-1.3168240
2003.0000000;-2.7831342