1967.0000000;-0.8999104
1968.0000000;-0.4909521
1969.0000000;-1.0341992
1970.0000000;-1.0884967
1971.0000000;-1.3409501
1972.0000000;-0.4677581
1973.0000000;-1.7428269
1974.0000000;-1.2001237
1975.0000000;-0.5960519
1976.0000000;-1.4539396
1977.0000000;0.2901825
1978.0000000;0.3424829
1979.0000000;-0.5983801
1980.0000000;0.2077940
1981.0000000;-0.1413936
1982.0000000;-0.5285266
1983.0000000;-0.2874745
1984.0000000;0.2857738
1985.0000000;-0.5535429
1986.0000000;-1.4869153
1987.0000000;-0.6042506
1988.0000000;-0.3429394
1989.0000000;-1.4788771
1990.0000000;-1.3245220
1991.0000000;-0.8553363
1992.0000000;-0.7072761
1993.0000000;-0.6372927
1994.0000000;-0.6526355
1995.0000000;0.3819804
1996.0000000;-0.1733107
1997.0000000;-0.9148291
1998.0000000;-1.6626781
1999.0000000;-0.8630102
2000.0000000;-1.1309232
2001.0000000;0.3025730
2002.0000000;-1.3697088
2003.0000000;-2.8115163