1967.0000000;-1.2182062
1968.0000000;0.1489709
1969.0000000;-0.3195902
1970.0000000;-1.0383167
1971.0000000;-0.6572783
1972.0000000;-0.1626931
1973.0000000;-1.4313936
1974.0000000;-1.2180669
1975.0000000;-0.9208837
1976.0000000;-1.1916791
1977.0000000;0.9917875
1978.0000000;0.6951282
1979.0000000;0.3088211
1980.0000000;0.1413245
1981.0000000;-0.7374483
1982.0000000;-0.2064707
1983.0000000;-0.1577099
1984.0000000;0.1562209
1985.0000000;-0.9041320
1986.0000000;-1.3324014
1987.0000000;-0.9537402
1988.0000000;-0.2566192
1989.0000000;-1.7478147
1990.0000000;-1.2809093
1991.0000000;-0.9566523
1992.0000000;-0.8574381
1993.0000000;-0.7918895
1994.0000000;-0.4801035
1995.0000000;-0.2883963
1996.0000000;-0.1208398
1997.0000000;-0.4723125
1998.0000000;-1.7487715
1999.0000000;-1.3082995
2000.0000000;-1.5944033
2001.0000000;1.0269451
2002.0000000;-1.6302322
2003.0000000;-2.7026010