1967.0000000;-0.5282773
1968.0000000;-0.7805551
1969.0000000;-0.8679842
1970.0000000;-0.8320948
1971.0000000;-1.7568060
1972.0000000;-0.5145167
1973.0000000;-1.5052686
1974.0000000;-0.7293150
1975.0000000;-0.6166419
1976.0000000;-1.2597426
1977.0000000;0.1503464
1978.0000000;0.5032181
1979.0000000;0.0480320
1980.0000000;0.5286060
1981.0000000;0.4158470
1982.0000000;0.0867429
1983.0000000;-0.2055325
1984.0000000;0.5438224
1985.0000000;-0.4782332
1986.0000000;-1.3980235
1987.0000000;-0.2006255
1988.0000000;0.2483243
1989.0000000;-1.3498867
1990.0000000;-1.3820865
1991.0000000;-1.0057745
1992.0000000;-1.3602366
1993.0000000;-0.6339300
1994.0000000;-0.7977784
1995.0000000;0.6368223
1996.0000000;-0.3879157
1997.0000000;-0.8939953
1998.0000000;-1.7550056
1999.0000000;-1.0028652
2000.0000000;-1.1631644
2001.0000000;0.3248084
2002.0000000;-1.3205359
2003.0000000;-2.9852898