1967.0000000;-1.0739909
1968.0000000;0.3422283
1969.0000000;-0.2001960
1970.0000000;-0.7328935
1971.0000000;-0.6896931
1972.0000000;-0.0101234
1973.0000000;-0.7716755
1974.0000000;-0.6628484
1975.0000000;-0.7241190
1976.0000000;-0.6929011
1977.0000000;0.5518802
1978.0000000;0.2304554
1979.0000000;-0.1849044
1980.0000000;-0.2394358
1981.0000000;-0.9246141
1982.0000000;-0.4755836
1983.0000000;-0.1020751
1984.0000000;0.2638289
1985.0000000;-0.7015650
1986.0000000;-1.2238686
1987.0000000;-0.5287827
1988.0000000;-0.5387499
1989.0000000;-1.4561198
1990.0000000;-0.6743432
1991.0000000;-0.9877254
1992.0000000;-0.6989189
1993.0000000;-0.7718115
1994.0000000;-0.5207211
1995.0000000;0.1181848
1996.0000000;0.1558555
1997.0000000;-0.4508417
1998.0000000;-1.4053229
1999.0000000;-0.9610298
2000.0000000;-1.2626163
2001.0000000;0.4894959
2002.0000000;-0.5067729
2003.0000000;-2.0482845
2004.0000000;-1.8248689
2005.0000000;-1.9438868
2006.0000000;-1.4319991
2007.0000000;-1.1412390
2008.0000000;-0.6058993
2009.0000000;-1.4392526
2010.0000000;-0.5965406
2011.0000000;-1.7616625
2012.0000000;-1.5261019
2013.0000000;-0.5934759
2014.0000000;-0.6392463
2015.0000000;-1.2812808