1967.0000000;-1.1795483
1968.0000000;0.1986576
1969.0000000;-0.4169572
1970.0000000;-0.9567348
1971.0000000;-0.9607656
1972.0000000;-0.1195001
1973.0000000;-1.2921844
1974.0000000;-1.3247640
1975.0000000;0.0237124
1976.0000000;-1.4053706
1977.0000000;0.7050148
1978.0000000;0.5446514
1979.0000000;-0.6006132
1980.0000000;0.2262769
1981.0000000;-0.2899218
1982.0000000;-0.2632121
1983.0000000;-0.3893956
1984.0000000;0.4348918
1985.0000000;-0.6789265
1986.0000000;-1.3422258
1987.0000000;-0.5246977
1988.0000000;-0.0864330
1989.0000000;-1.6954317
1990.0000000;-1.3629436
1991.0000000;-0.9527138
1992.0000000;-0.9839526
1993.0000000;-0.6427721
1994.0000000;-0.2275692
1995.0000000;0.2963058
1996.0000000;-0.3477944
1997.0000000;-0.4327045
1998.0000000;-1.5992563
1999.0000000;-0.6633928
2000.0000000;-0.9096090
2001.0000000;0.7286525
2002.0000000;-1.0521553
2003.0000000;-2.5830796