1967.0000000;-2.0162904
1968.0000000;-1.2706200
1969.0000000;-1.9995283
1970.0000000;-1.6490192
1971.0000000;-2.0786228
1972.0000000;-0.7132000
1973.0000000;-2.2035899
1974.0000000;-1.6307528
1975.0000000;-1.2351899
1976.0000000;-1.8409934
1977.0000000;-0.4150805
1978.0000000;-0.3793656
1979.0000000;-1.5062820
1980.0000000;-0.4205514
1981.0000000;-1.2016571
1982.0000000;-1.7856836
1983.0000000;-0.9476889
1984.0000000;0.0549149
1985.0000000;-1.2539101
1986.0000000;-1.7748461
1987.0000000;-1.2783301
1988.0000000;-0.9766209
1989.0000000;-1.6313053
1990.0000000;-1.5315721
1991.0000000;-1.6442206
1992.0000000;-1.3126879
1993.0000000;-0.9420556
1994.0000000;-0.8705774
1995.0000000;-0.0017889
1996.0000000;-0.6026677
1997.0000000;-0.8784447
1998.0000000;-1.7851577
1999.0000000;-0.8189412
2000.0000000;-1.1369537
2001.0000000;0.1612666
2002.0000000;-1.1644690
2003.0000000;-2.5851555