1967.0000000;-0.6717877
1968.0000000;0.2495317
1969.0000000;-0.2579759
1970.0000000;0.0507173
1971.0000000;-1.1062093
1972.0000000;-0.3278849
1973.0000000;-0.4919799
1974.0000000;-1.1363282
1975.0000000;0.2199142
1976.0000000;-1.5380108
1977.0000000;0.5760014
1978.0000000;0.7508132
1979.0000000;-0.0515418
1980.0000000;0.7496016
1981.0000000;0.1560278
1982.0000000;-0.0687533
1983.0000000;-0.2297556
1984.0000000;0.7858832
1985.0000000;-0.3801073
1986.0000000;-1.5500661
1987.0000000;-0.4048056
1988.0000000;-0.0357393
1989.0000000;-1.3855079
1990.0000000;-1.8833420
1991.0000000;-1.0703657
1992.0000000;-1.4668341
1993.0000000;-0.7803510
1994.0000000;-0.5139704
1995.0000000;0.7282228
1996.0000000;-1.0565414
1997.0000000;-1.2605287
1998.0000000;-2.1962297
1999.0000000;-1.0672915
2000.0000000;-1.4817883
2001.0000000;0.0908925
2002.0000000;-2.1141357
2003.0000000;-3.1611307