1967.0000000;-0.4966753
1968.0000000;0.1268415
1969.0000000;-0.4399706
1970.0000000;-0.5767209
1971.0000000;-1.2900476
1972.0000000;-0.5128758
1973.0000000;-0.9682691
1974.0000000;-0.7263567
1975.0000000;-0.2544911
1976.0000000;-1.1779082
1977.0000000;0.4422779
1978.0000000;0.6133319
1979.0000000;0.0776168
1980.0000000;0.6629276
1981.0000000;0.4858495
1982.0000000;0.2749866
1983.0000000;-0.1390313
1984.0000000;0.6997190
1985.0000000;0.1190424
1986.0000000;-1.0806527
1987.0000000;-0.1417778
1988.0000000;0.1924481
1989.0000000;-1.3655994
1990.0000000;-1.5984538
1991.0000000;-0.7557465
1992.0000000;-1.5777409
1993.0000000;-0.5165306
1994.0000000;-0.3166762
1995.0000000;0.7187264
1996.0000000;-0.1363139
1997.0000000;-0.8180997
1998.0000000;-1.5413857
1999.0000000;-0.6374469
2000.0000000;-0.8212540
2001.0000000;0.8261776
2002.0000000;-0.7694029
2003.0000000;-2.3304844