1967.0000000;-0.5219735
1968.0000000;1.3089496
1969.0000000;-1.3144786
1970.0000000;-0.3712670
1971.0000000;-1.1185507
1972.0000000;-0.9564906
1973.0000000;-0.4864585
1974.0000000;-0.6507390
1975.0000000;-0.8450273
1976.0000000;-1.6131713
1977.0000000;0.4537289
1978.0000000;0.2254860
1979.0000000;0.2555014
1980.0000000;0.5657260
1981.0000000;0.0305036
1982.0000000;-0.0663214
1983.0000000;-0.0214759
1984.0000000;2.2092180
1985.0000000;1.2401431
1986.0000000;-1.4259703
1987.0000000;0.3600796
1988.0000000;-0.0867638
1989.0000000;-1.1428906
1990.0000000;-1.3782073
1991.0000000;-1.6479208
1992.0000000;-1.3262465
1993.0000000;-0.5234381
1994.0000000;-0.1370397
1995.0000000;1.0838779
1996.0000000;0.2664702
1997.0000000;-0.4732252
1998.0000000;-1.8632718
1999.0000000;-0.3846108
2000.0000000;-0.8005847
2001.0000000;1.0674453
2002.0000000;-0.0092034
2003.0000000;-2.2767925
2004.0000000;-2.0746751
2005.0000000;-2.0474319
2006.0000000;-1.2536917
2007.0000000;-0.5000269
2008.0000000;-1.5930817
2009.0000000;-2.7985890
2010.0000000;-1.1545730
2011.0000000;-2.4910808
2012.0000000;-2.6485710
2013.0000000;-1.2838312
2014.0000000;-1.2203275
2015.0000000;-2.3854098