1967.0000000;-1.6010373
1968.0000000;-0.3482842
1969.0000000;-0.5221558
1970.0000000;-1.0141902
1971.0000000;-1.4048197
1972.0000000;-0.1442543
1973.0000000;-0.7666550
1974.0000000;-1.2989061
1975.0000000;-0.5610462
1976.0000000;-0.6835441
1977.0000000;0.4811481
1978.0000000;0.1767243
1979.0000000;-1.2784222
1980.0000000;-0.5574321
1981.0000000;-0.4186975
1982.0000000;-1.3963149
1983.0000000;-0.4960027
1984.0000000;0.4529855
1985.0000000;-0.2084536
1986.0000000;-1.3909583
1987.0000000;-1.3793944
1988.0000000;-1.3691540
1989.0000000;-1.6538103
1990.0000000;-1.4526687
1991.0000000;-1.8580772
1992.0000000;-1.5522921
1993.0000000;-0.8618356
1994.0000000;-0.8083834
1995.0000000;-0.1160501
1996.0000000;-1.2498417
1997.0000000;-1.1450493
1998.0000000;-1.9465212
1999.0000000;-0.9720919
2000.0000000;-1.0911877
2001.0000000;0.5990080
2002.0000000;0.2391942
2003.0000000;-2.1902483