1967.0000000;-0.3272830
1968.0000000;-0.3006233
1969.0000000;-0.5295616
1970.0000000;-0.5143513
1971.0000000;-1.4530269
1972.0000000;-0.6339732
1973.0000000;-1.0565963
1974.0000000;-0.8182733
1975.0000000;-0.2072002
1976.0000000;-1.4891791
1977.0000000;0.5411917
1978.0000000;0.9225515
1979.0000000;0.2331795
1980.0000000;0.8930004
1981.0000000;0.5130898
1982.0000000;0.2454191
1983.0000000;-0.0773861
1984.0000000;0.5462661
1985.0000000;-0.2360167
1986.0000000;-1.6390728
1987.0000000;0.2894963
1988.0000000;0.1488313
1989.0000000;-1.8634961
1990.0000000;-1.7350518
1991.0000000;-0.6916902
1992.0000000;-0.9651710
1993.0000000;-0.5737737
1994.0000000;-0.4193745
1995.0000000;1.0127821
1996.0000000;-0.2897438
1997.0000000;-0.8208944
1998.0000000;-1.5874989
1999.0000000;-0.9188694
2000.0000000;-1.3309531
2001.0000000;0.1345128
2002.0000000;-1.9619962
2003.0000000;-3.8311534