1967.0000000;-0.7717534
1968.0000000;0.1677293
1969.0000000;-0.2970853
1970.0000000;-0.1712196
1971.0000000;-1.1153404
1972.0000000;-0.3046423
1973.0000000;-0.6706359
1974.0000000;-1.1415056
1975.0000000;0.1430414
1976.0000000;-1.4825041
1977.0000000;0.3890879
1978.0000000;0.5873588
1979.0000000;-0.3338084
1980.0000000;0.5628733
1981.0000000;-0.0512005
1982.0000000;-0.2511594
1983.0000000;-0.4444728
1984.0000000;0.7010772
1985.0000000;-0.4283110
1986.0000000;-1.5537115
1987.0000000;-0.4965659
1988.0000000;-0.0139261
1989.0000000;-1.5284855
1990.0000000;-1.5471797
1991.0000000;-1.0109843
1992.0000000;-1.3741300
1993.0000000;-0.8133233
1994.0000000;-0.6850103
1995.0000000;0.6578137
1996.0000000;-0.5189189
1997.0000000;-1.0427243
1998.0000000;-1.9621606
1999.0000000;-0.8911520
2000.0000000;-1.3597705
2001.0000000;0.3925253
2002.0000000;-1.5384071
2003.0000000;-2.8019848