1967.0000000;-0.7045319
1968.0000000;0.7083065
1969.0000000;-0.5567116
1970.0000000;-0.3878173
1971.0000000;-1.1734728
1972.0000000;-0.4402356
1973.0000000;-0.4706731
1974.0000000;-0.7138435
1975.0000000;-0.7117923
1976.0000000;-1.3232454
1977.0000000;0.3529803
1978.0000000;0.4614610
1979.0000000;0.1366458
1980.0000000;0.5004353
1981.0000000;0.2748639
1982.0000000;0.2733409
1983.0000000;-0.0946756
1984.0000000;1.3106177
1985.0000000;0.7955263
1986.0000000;-0.9807057
1987.0000000;0.0746333
1988.0000000;0.2884896
1989.0000000;-1.3021390
1990.0000000;-1.7735023
1991.0000000;-1.4543409
1992.0000000;-1.5151330
1993.0000000;-0.7380795
1994.0000000;-0.4534503
1995.0000000;0.7399910
1996.0000000;-0.1678892
1997.0000000;-0.7327554
1998.0000000;-1.8483930
1999.0000000;-0.6300128
2000.0000000;-0.7671416
2001.0000000;0.9186660
2002.0000000;-0.3613419
2003.0000000;-2.1031940