1967.0000000;-0.8172015
1968.0000000;0.4460449
1969.0000000;-0.3410593
1970.0000000;-0.3168553
1971.0000000;-1.1687453
1972.0000000;-0.3162094
1973.0000000;-0.5529457
1974.0000000;-0.5755280
1975.0000000;-0.3341329
1976.0000000;-1.1244657
1977.0000000;-0.1208277
1978.0000000;0.3825830
1979.0000000;-0.1444764
1980.0000000;0.2397831
1981.0000000;0.0776551
1982.0000000;-0.0011754
1983.0000000;-0.2708406
1984.0000000;1.0244504
1985.0000000;0.4093102
1986.0000000;-1.0723759
1987.0000000;-0.2164695
1988.0000000;0.3849541
1989.0000000;-1.2131338
1990.0000000;-1.2692130
1991.0000000;-1.3579828
1992.0000000;-1.1151843
1993.0000000;-0.5836782
1994.0000000;-0.3301764
1995.0000000;0.6881473
1996.0000000;0.0494804
1997.0000000;-0.6538301
1998.0000000;-1.4219992
1999.0000000;-0.6849906
2000.0000000;-0.7463734
2001.0000000;0.7322823
2002.0000000;-0.2120410
2003.0000000;-2.0969965