1967.0000000;-1.2350428
1968.0000000;0.1011182
1969.0000000;-0.2811384
1970.0000000;-0.9273406
1971.0000000;-0.6411014
1972.0000000;-0.1713805
1973.0000000;-1.5228927
1974.0000000;-0.9267834
1975.0000000;-0.7478930
1976.0000000;-0.9157652
1977.0000000;0.6500579
1978.0000000;0.4540406
1979.0000000;0.0293751
1980.0000000;-0.0915853
1981.0000000;-0.6538513
1982.0000000;-0.2982210
1983.0000000;-0.2163566
1984.0000000;0.0110232
1985.0000000;-0.6335071
1986.0000000;-1.2734032
1987.0000000;-0.6575803
1988.0000000;-0.4128550
1989.0000000;-1.5920374
1990.0000000;-0.9243423
1991.0000000;-0.8302593
1992.0000000;-0.8023926
1993.0000000;-0.6779474
1994.0000000;-0.5585390
1995.0000000;-0.1473213
1996.0000000;0.0859505
1997.0000000;-0.5248467
1998.0000000;-1.4977100
1999.0000000;-0.9580572
2000.0000000;-1.3351874
2001.0000000;0.9420394
2002.0000000;-0.7538051
2003.0000000;-2.2627988