1967.0000000;-1.5361569
1968.0000000;0.8108134
1969.0000000;-0.5223671
1970.0000000;-0.6248004
1971.0000000;-0.9852951
1972.0000000;0.1913527
1973.0000000;-1.1278386
1974.0000000;-0.9471691
1975.0000000;-0.0585173
1976.0000000;-1.1751356
1977.0000000;0.3097307
1978.0000000;0.3111316
1979.0000000;-0.9213130
1980.0000000;-0.2806365
1981.0000000;-0.4802956
1982.0000000;-0.9410563
1983.0000000;-0.4468501
1984.0000000;0.9009433
1985.0000000;-0.4564579
1986.0000000;-1.3404803
1987.0000000;-0.6081192
1988.0000000;-0.1405607
1989.0000000;-1.5932708
1990.0000000;-0.9540329
1991.0000000;-1.4262869
1992.0000000;-0.9493753
1993.0000000;-0.6182582
1994.0000000;-0.5123122
1995.0000000;0.4003945
1996.0000000;-0.3685794
1997.0000000;-0.4633547
1998.0000000;-1.6582936
1999.0000000;-0.5230735
2000.0000000;-0.9662353
2001.0000000;0.5146379
2002.0000000;-0.1274843
2003.0000000;-2.3811674
2004.0000000;-2.1455164
2005.0000000;-2.1327868
2006.0000000;-1.8450757
2007.0000000;-1.3126086
2008.0000000;-1.1893770
2009.0000000;-2.0151050
2010.0000000;-0.9205654
2011.0000000;-2.1230345
2012.0000000;-1.9518574
2013.0000000;-0.6038021
2014.0000000;-0.7983133
2015.0000000;-1.8356322