1967.0000000;-0.7554827
1968.0000000;0.1926566
1969.0000000;-0.2009703
1970.0000000;-0.1117940
1971.0000000;-1.0398643
1972.0000000;-0.2205564
1973.0000000;-0.5116650
1974.0000000;-1.0355334
1975.0000000;0.0487053
1976.0000000;-1.3616925
1977.0000000;0.3029380
1978.0000000;0.5168531
1979.0000000;-0.3490799
1980.0000000;0.4702768
1981.0000000;-0.1115009
1982.0000000;-0.2846436
1983.0000000;-0.4500490
1984.0000000;0.6755386
1985.0000000;-0.2565388
1986.0000000;-1.4153550
1987.0000000;-0.5833392
1988.0000000;-0.1737000
1989.0000000;-1.4462545
1990.0000000;-1.2047455
1991.0000000;-0.9884395
1992.0000000;-1.1490192
1993.0000000;-0.7787319
1994.0000000;-0.5990806
1995.0000000;0.5629681
1996.0000000;-0.2502590
1997.0000000;-0.8283697
1998.0000000;-1.7001709
1999.0000000;-0.8557714
2000.0000000;-1.1879025
2001.0000000;0.2493659
2002.0000000;-1.0376298
2003.0000000;-2.4879200