1967.0000000;-0.7920753
1968.0000000;0.1183328
1969.0000000;-0.4904764
1970.0000000;-0.9658895
1971.0000000;-0.9186921
1972.0000000;-0.2246940
1973.0000000;-1.6726162
1974.0000000;-1.2836785
1975.0000000;0.0048454
1976.0000000;-1.3180869
1977.0000000;0.6417174
1978.0000000;0.5997733
1979.0000000;-0.2268420
1980.0000000;0.3945665
1981.0000000;-0.0092716
1982.0000000;-0.0955821
1983.0000000;-0.2689768
1984.0000000;0.5128590
1985.0000000;-0.6984521
1986.0000000;-1.4020854
1987.0000000;-0.4568484
1988.0000000;-0.0452077
1989.0000000;-1.6969521
1990.0000000;-1.4548761
1991.0000000;-0.7994847
1992.0000000;-0.9561465
1993.0000000;-0.5499561
1994.0000000;-0.1802289
1995.0000000;0.4421036
1996.0000000;-0.2899693
1997.0000000;-0.6087114
1998.0000000;-1.6795754
1999.0000000;-0.9745992
2000.0000000;-1.1986730
2001.0000000;0.9077717
2002.0000000;-1.4323543
2003.0000000;-2.8314741