1967.0000000;-1.0813856
1968.0000000;-0.5337423
1969.0000000;-1.0397260
1970.0000000;-1.2655342
1971.0000000;-1.2869078
1972.0000000;-0.2589445
1973.0000000;-1.7535567
1974.0000000;-1.2407129
1975.0000000;-0.7220615
1976.0000000;-1.3024992
1977.0000000;0.2140011
1978.0000000;0.2245281
1979.0000000;-0.7110615
1980.0000000;0.0908861
1981.0000000;-0.3075318
1982.0000000;-0.4626101
1983.0000000;-0.3597148
1984.0000000;0.3582438
1985.0000000;-0.6008244
1986.0000000;-1.4581175
1987.0000000;-0.7924535
1988.0000000;-0.2421807
1989.0000000;-1.4654970
1990.0000000;-1.2586232
1991.0000000;-0.8432523
1992.0000000;-0.8956255
1993.0000000;-0.6003587
1994.0000000;-0.4025529
1995.0000000;0.2835612
1996.0000000;-0.3368291
1997.0000000;-0.8893613
1998.0000000;-1.5857680
1999.0000000;-0.9467466
2000.0000000;-1.0847428
2001.0000000;0.7901429
2002.0000000;-0.6724756
2003.0000000;-2.5824385