1967.0000000;-0.5601740
1968.0000000;0.0363023
1969.0000000;-0.2159166
1970.0000000;-0.7890688
1971.0000000;-0.5415920
1972.0000000;-0.0115812
1973.0000000;-1.3111237
1974.0000000;-0.8021842
1975.0000000;-0.1823919
1976.0000000;-0.7400736
1977.0000000;0.6133150
1978.0000000;0.6579486
1979.0000000;0.0214290
1980.0000000;0.4715052
1981.0000000;0.2125875
1982.0000000;0.0177650
1983.0000000;-0.2016413
1984.0000000;0.4088702
1985.0000000;-0.3301493
1986.0000000;-1.3202195
1987.0000000;-0.3946417
1988.0000000;0.1281563
1989.0000000;-1.1455326
1990.0000000;-1.2876781
1991.0000000;-0.5381281
1992.0000000;-0.5574844
1993.0000000;-0.5370101
1994.0000000;-0.3084669
1995.0000000;0.4779993
1996.0000000;-0.3233724
1997.0000000;-1.0411892
1998.0000000;-1.5071179
1999.0000000;-0.9533769
2000.0000000;-1.2553535
2001.0000000;0.6359951
2002.0000000;-1.2344682
2003.0000000;-2.9586074