1967.0000000;-0.8173692
1968.0000000;0.2945592
1969.0000000;-0.1949089
1970.0000000;-0.6727513
1971.0000000;-0.6825086
1972.0000000;-0.0383125
1973.0000000;-1.2742426
1974.0000000;-0.8740733
1975.0000000;0.1218417
1976.0000000;-0.8588543
1977.0000000;0.5729342
1978.0000000;0.5693849
1979.0000000;-0.3174893
1980.0000000;0.2290393
1981.0000000;-0.0924133
1982.0000000;-0.1511570
1983.0000000;-0.2402066
1984.0000000;0.4650917
1985.0000000;-0.4935016
1986.0000000;-1.3031775
1987.0000000;-0.4777005
1988.0000000;-0.0269749
1989.0000000;-1.5360572
1990.0000000;-1.0125786
1991.0000000;-0.7699693
1992.0000000;-0.9384294
1993.0000000;-0.5576693
1994.0000000;-0.2573323
1995.0000000;0.3887474
1996.0000000;-0.2427506
1997.0000000;-0.4387161
1998.0000000;-1.6354907
1999.0000000;-0.8189275
2000.0000000;-1.1216397
2001.0000000;0.8339121
2002.0000000;-1.0687308
2003.0000000;-2.7229016
2004.0000000;-2.0518889
2005.0000000;-2.2323742
2006.0000000;-1.9420406
2007.0000000;-1.2542055
2008.0000000;-1.0360570
2009.0000000;-2.2765517
2010.0000000;-0.6082693
2011.0000000;-2.3143630
2012.0000000;-1.8616638
2013.0000000;-0.5378782
2014.0000000;-0.6929947
2015.0000000;-1.8408778