1967.0000000;-1.1279516
1968.0000000;0.0748592
1969.0000000;-0.2825340
1970.0000000;-0.9319029
1971.0000000;-0.4994691
1972.0000000;-0.1194111
1973.0000000;-1.4985176
1974.0000000;-0.8095721
1975.0000000;-0.6891943
1976.0000000;-0.7687277
1977.0000000;0.6311225
1978.0000000;0.4669856
1979.0000000;0.0798720
1980.0000000;-0.0403647
1981.0000000;-0.5285614
1982.0000000;-0.2541182
1983.0000000;-0.1936385
1984.0000000;0.0527303
1985.0000000;-0.6434808
1986.0000000;-1.2753948
1987.0000000;-0.6754487
1988.0000000;-0.3698834
1989.0000000;-1.5766019
1990.0000000;-0.8814068
1991.0000000;-0.6746186
1992.0000000;-0.9418229
1993.0000000;-0.6194026
1994.0000000;-0.5384327
1995.0000000;-0.0593774
1996.0000000;0.1138993
1997.0000000;-0.6004806
1998.0000000;-1.5103054
1999.0000000;-1.0620492
2000.0000000;-1.4333115
2001.0000000;1.0030494
2002.0000000;-0.5708377
2003.0000000;-2.3234558