1967.0000000;-1.8393624
1968.0000000;-0.6996087
1969.0000000;-1.7687154
1970.0000000;-1.4615555
1971.0000000;-1.7664351
1972.0000000;-0.3032088
1973.0000000;-2.1093252
1974.0000000;-1.4713557
1975.0000000;-0.3406276
1976.0000000;-1.6102098
1977.0000000;0.0464661
1978.0000000;-0.0494821
1979.0000000;-1.4846761
1980.0000000;-0.2356802
1981.0000000;-1.1285805
1982.0000000;-1.4944298
1983.0000000;-0.9165589
1984.0000000;0.6698789
1985.0000000;-1.0487998
1986.0000000;-1.7787572
1987.0000000;-1.3008213
1988.0000000;-0.6775667
1989.0000000;-1.6807313
1990.0000000;-1.6534462
1991.0000000;-1.6303735
1992.0000000;-1.5445683
1993.0000000;-1.0237899
1994.0000000;-1.1136785
1995.0000000;0.1012218
1996.0000000;-1.6526603
1997.0000000;-2.0060222
1998.0000000;-2.1018260
1999.0000000;-1.3747590
2000.0000000;-1.7755640
2001.0000000;0.2835701
2002.0000000;-1.6410828
2003.0000000;-3.1798000