1967.0000000;-1.2308918
1968.0000000;0.0583017
1969.0000000;-0.4462712
1970.0000000;-1.1253431
1971.0000000;-0.5616759
1972.0000000;-0.2285921
1973.0000000;-1.7296662
1974.0000000;-0.9586222
1975.0000000;-0.8174453
1976.0000000;-0.9454240
1977.0000000;0.8079062
1978.0000000;0.5120793
1979.0000000;0.1354381
1980.0000000;-0.0293380
1981.0000000;-0.5916326
1982.0000000;-0.2756540
1983.0000000;-0.1348493
1984.0000000;0.0764102
1985.0000000;-0.7827462
1986.0000000;-1.3720230
1987.0000000;-0.8256029
1988.0000000;-0.4009582
1989.0000000;-1.6549234
1990.0000000;-1.0597732
1991.0000000;-0.7088854
1992.0000000;-1.0246005
1993.0000000;-0.6418720
1994.0000000;-0.4590471
1995.0000000;-0.0810170
1996.0000000;0.0535158
1997.0000000;-0.4623529
1998.0000000;-1.5855404
1999.0000000;-1.1400461
2000.0000000;-1.5427885
2001.0000000;1.1793735
2002.0000000;-0.9170993
2003.0000000;-2.4304695