1967.0000000;-0.5426250
1968.0000000;-0.2853994
1969.0000000;-0.8032722
1970.0000000;-0.6184745
1971.0000000;-1.6212964
1972.0000000;-0.5586277
1973.0000000;-1.1655624
1974.0000000;-0.9123363
1975.0000000;-0.5391176
1976.0000000;-1.3970258
1977.0000000;0.1087401
1978.0000000;0.5225127
1979.0000000;-0.1849346
1980.0000000;0.5353301
1981.0000000;0.3568437
1982.0000000;0.0927874
1983.0000000;-0.2268030
1984.0000000;1.0740161
1985.0000000;0.3918744
1986.0000000;-1.3099592
1987.0000000;-0.1483954
1988.0000000;0.1419312
1989.0000000;-1.4296095
1990.0000000;-1.7691352
1991.0000000;-1.3383447
1992.0000000;-1.9105787
1993.0000000;-0.7322124
1994.0000000;-0.6557868
1995.0000000;0.7664078
1996.0000000;-0.2852054
1997.0000000;-0.8809876
1998.0000000;-1.7167209
1999.0000000;-0.7255706
2000.0000000;-0.9824187
2001.0000000;0.8101389
2002.0000000;-0.8946844
2003.0000000;-2.5282102