1967.0000000;-0.8325738
1968.0000000;-0.1959400
1969.0000000;-0.8101108
1970.0000000;-1.1328751
1971.0000000;-0.9900498
1972.0000000;-0.2943569
1973.0000000;-1.8149971
1974.0000000;-1.0758994
1975.0000000;-0.4617505
1976.0000000;-1.1836200
1977.0000000;0.6317944
1978.0000000;0.4989749
1979.0000000;-0.0990494
1980.0000000;0.3263424
1981.0000000;-0.0522113
1982.0000000;-0.2980806
1983.0000000;-0.2058142
1984.0000000;0.2860405
1985.0000000;-0.4009506
1986.0000000;-1.5704291
1987.0000000;-0.5651437
1988.0000000;-0.0840668
1989.0000000;-1.5370243
1990.0000000;-1.2968570
1991.0000000;-0.6138418
1992.0000000;-0.6894035
1993.0000000;-0.6512599
1994.0000000;-0.4810288
1995.0000000;0.4286947
1996.0000000;-0.1563721
1997.0000000;-0.9746973
1998.0000000;-1.8135310
1999.0000000;-0.9544023
2000.0000000;-1.4506775
2001.0000000;0.5531552
2002.0000000;-1.6687596
2003.0000000;-3.1935167