1967.0000000;-1.3591942
1968.0000000;-0.5257820
1969.0000000;-0.3666789
1970.0000000;-1.3016615
1971.0000000;-1.4862527
1972.0000000;-0.5273411
1973.0000000;-1.7412388
1974.0000000;-1.0917507
1975.0000000;-0.0780715
1976.0000000;-0.9877556
1977.0000000;0.5405456
1978.0000000;0.5031357
1979.0000000;-0.9433649
1980.0000000;0.3550096
1981.0000000;0.0724291
1982.0000000;-0.3883119
1983.0000000;-0.6796961
1984.0000000;0.3886487
1985.0000000;-0.4161870
1986.0000000;-1.4765478
1987.0000000;-1.1749476
1988.0000000;-0.8077217
1989.0000000;-1.6936042
1990.0000000;-1.7590749
1991.0000000;-1.7348002
1992.0000000;-1.9977286
1993.0000000;-0.7989433
1994.0000000;-0.6727973
1995.0000000;0.2982382
1996.0000000;-0.5021344
1997.0000000;-0.9895408
1998.0000000;-1.9507637
1999.0000000;-0.9025313
2000.0000000;-1.4837868
2001.0000000;0.6467581
2002.0000000;-0.4036803
2003.0000000;-2.4960098