1967.0000000;-1.5127797
1968.0000000;0.6911924
1969.0000000;-0.4857692
1970.0000000;-0.7367788
1971.0000000;-0.8752663
1972.0000000;0.1829286
1973.0000000;-1.1769612
1974.0000000;-0.9667848
1975.0000000;-0.2643286
1976.0000000;-1.2152369
1977.0000000;0.3577976
1978.0000000;0.1934050
1979.0000000;-0.8621986
1980.0000000;-0.5139169
1981.0000000;-0.6032563
1982.0000000;-0.9358334
1983.0000000;-0.3068166
1984.0000000;0.7583858
1985.0000000;-0.2553632
1986.0000000;-1.2548505
1987.0000000;-0.4160302
1988.0000000;-0.5194203
1989.0000000;-1.5471523
1990.0000000;-0.4754105
1991.0000000;-1.2704811
1992.0000000;-0.8951001
1993.0000000;-0.3850013
1994.0000000;-0.4634916
1995.0000000;0.2403612
1996.0000000;-0.1702965
1997.0000000;-0.3020801
1998.0000000;-1.5591326
1999.0000000;-0.4640439
2000.0000000;-0.9337417
2001.0000000;0.5097814
2002.0000000;-0.0594926
2003.0000000;-2.2058687
2004.0000000;-2.0309911
2005.0000000;-2.0476189
2006.0000000;-1.7182912
2007.0000000;-1.1941166
2008.0000000;-1.0446763
2009.0000000;-1.8586396
2010.0000000;-0.8056183
2011.0000000;-1.9925854
2012.0000000;-1.7914188
2013.0000000;-0.5227134
2014.0000000;-0.7153078
2015.0000000;-1.6787922