1967.0000000;-0.5237672
1968.0000000;0.3157530
1969.0000000;-0.0116322
1970.0000000;0.0864061
1971.0000000;-0.7265731
1972.0000000;-0.0426098
1973.0000000;-0.2153671
1974.0000000;-0.5426983
1975.0000000;0.0773318
1976.0000000;-0.8121067
1977.0000000;0.2069946
1978.0000000;0.5247382
1979.0000000;-0.1677915
1980.0000000;0.3607049
1981.0000000;-0.0976294
1982.0000000;-0.1686627
1983.0000000;-0.1960642
1984.0000000;0.8324201
1985.0000000;0.1599640
1986.0000000;-1.3249279
1987.0000000;-0.3352257
1988.0000000;0.0293119
1989.0000000;-1.0272717
1990.0000000;-0.6253827
1991.0000000;-0.6546565
1992.0000000;-0.8551147
1993.0000000;-0.5900303
1994.0000000;-0.3407846
1995.0000000;0.6753227
1996.0000000;0.0689790
1997.0000000;-0.4064412
1998.0000000;-1.3972125
1999.0000000;-0.5868312
2000.0000000;-0.9088804
2001.0000000;0.3769045
2002.0000000;-0.2956402
2003.0000000;-2.2302153
2004.0000000;-1.9642639
2005.0000000;-2.0212433
2006.0000000;-1.3577583
2007.0000000;-0.4310177
2008.0000000;-0.9523097
2009.0000000;-1.9696455
2010.0000000;-0.1981109
2011.0000000;-1.9912834
2012.0000000;-2.0156572
2013.0000000;-0.5674660
2014.0000000;-0.5903031
2015.0000000;-1.8588761