1967.0000000;-0.7190559
1968.0000000;0.2346406
1969.0000000;-0.2010956
1970.0000000;0.0185380
1971.0000000;-1.0999229
1972.0000000;-0.3164530
1973.0000000;-0.5180315
1974.0000000;-1.1368185
1975.0000000;0.1178040
1976.0000000;-1.5451711
1977.0000000;0.5079840
1978.0000000;0.6678225
1979.0000000;-0.0840722
1980.0000000;0.7152729
1981.0000000;0.0530820
1982.0000000;-0.1293958
1983.0000000;-0.3252051
1984.0000000;0.7624417
1985.0000000;-0.4038844
1986.0000000;-1.4908903
1987.0000000;-0.4098365
1988.0000000;-0.0987142
1989.0000000;-1.4975257
1990.0000000;-1.7939767
1991.0000000;-1.0348964
1992.0000000;-1.5580765
1993.0000000;-0.7648147
1994.0000000;-0.5738686
1995.0000000;0.6426199
1996.0000000;-0.6868340
1997.0000000;-1.0057459
1998.0000000;-2.0137825
1999.0000000;-0.9162519
2000.0000000;-1.4463614
2001.0000000;0.2507223
2002.0000000;-1.8515811
2003.0000000;-2.9737358