1967.0000000;-0.7122189
1968.0000000;0.1841691
1969.0000000;-0.1995268
1970.0000000;-0.2125064
1971.0000000;-0.9051287
1972.0000000;-0.2307259
1973.0000000;-0.6897308
1974.0000000;-0.9778588
1975.0000000;0.0468110
1976.0000000;-1.2674093
1977.0000000;0.4385772
1978.0000000;0.5259926
1979.0000000;-0.2403494
1980.0000000;0.4924094
1981.0000000;-0.0552373
1982.0000000;-0.1512586
1983.0000000;-0.4053817
1984.0000000;0.5044054
1985.0000000;-0.4192202
1986.0000000;-1.4478641
1987.0000000;-0.5419813
1988.0000000;-0.3236086
1989.0000000;-1.3690842
1990.0000000;-1.4285893
1991.0000000;-0.9715371
1992.0000000;-1.2857213
1993.0000000;-0.7067266
1994.0000000;-0.5612302
1995.0000000;0.5479081
1996.0000000;-0.1986634
1997.0000000;-0.8741235
1998.0000000;-1.7385842
1999.0000000;-0.8443892
2000.0000000;-1.2380980
2001.0000000;0.4711486
2002.0000000;-1.1081543
2003.0000000;-2.6040819