1967.0000000;-1.2849989
1968.0000000;0.4131591
1969.0000000;-1.9121341
1970.0000000;-1.0231056
1971.0000000;-1.8739495
1972.0000000;-1.0058833
1973.0000000;-1.3506939
1974.0000000;-1.4637797
1975.0000000;-1.0923114
1976.0000000;-2.0448182
1977.0000000;-0.1179140
1978.0000000;0.1948703
1979.0000000;-0.3398946
1980.0000000;0.5223191
1981.0000000;-0.1027957
1982.0000000;-0.0493958
1983.0000000;0.0261704
1984.0000000;1.2854214
1985.0000000;0.8898500
1986.0000000;-2.0374708
1987.0000000;0.2116518
1988.0000000;-0.3938183
1989.0000000;-1.6534328
1990.0000000;-2.1440110
1991.0000000;-2.2729650
1992.0000000;-1.9984188
1993.0000000;-0.8916134
1994.0000000;-0.9973083
1995.0000000;0.9684826
1996.0000000;-0.7438093
1997.0000000;-1.0789011
1998.0000000;-1.8384590
1999.0000000;-0.5833479
2000.0000000;-1.0709512
2001.0000000;0.4114286
2002.0000000;-1.7157739
2003.0000000;-3.1597142