1967.0000000;-0.8935618
1968.0000000;0.1732571
1969.0000000;-0.5395448
1970.0000000;-0.7965491
1971.0000000;-0.9317949
1972.0000000;-0.1357622
1973.0000000;-1.6833526
1974.0000000;-0.9600331
1975.0000000;-0.0085476
1976.0000000;-1.1679742
1977.0000000;0.5883677
1978.0000000;0.4617311
1979.0000000;-0.2785574
1980.0000000;0.2046907
1981.0000000;-0.0711965
1982.0000000;-0.3221384
1983.0000000;-0.2776345
1984.0000000;0.2251661
1985.0000000;-0.5043222
1986.0000000;-1.3530269
1987.0000000;-0.6356754
1988.0000000;-0.1542249
1989.0000000;-1.4271729
1990.0000000;-1.1241838
1991.0000000;-0.6983175
1992.0000000;-0.7063222
1993.0000000;-0.5925539
1994.0000000;-0.5861009
1995.0000000;0.2917364
1996.0000000;-0.0961627
1997.0000000;-0.8174076
1998.0000000;-1.6477100
1999.0000000;-0.7447149
2000.0000000;-1.2617315
2001.0000000;0.6628554
2002.0000000;-1.3040709
2003.0000000;-2.9742293