1967.0000000;-1.1343004
1968.0000000;0.2794284
1969.0000000;-0.3145466
1970.0000000;-0.8507919
1971.0000000;-0.7133576
1972.0000000;-0.0013326
1973.0000000;-1.1930184
1974.0000000;-1.1514535
1975.0000000;0.2306995
1976.0000000;-1.1308544
1977.0000000;0.6305348
1978.0000000;0.4873293
1979.0000000;-0.5214966
1980.0000000;0.1398431
1981.0000000;-0.3535145
1982.0000000;-0.3424443
1983.0000000;-0.3073014
1984.0000000;0.5425414
1985.0000000;-0.4916480
1986.0000000;-1.2672228
1987.0000000;-0.3515837
1988.0000000;0.0423516
1989.0000000;-1.6474862
1990.0000000;-1.1759243
1991.0000000;-0.8278447
1992.0000000;-0.8959993
1993.0000000;-0.6101328
1994.0000000;-0.1624325
1995.0000000;0.4082042
1996.0000000;-0.2381514
1997.0000000;-0.3702180
1998.0000000;-1.4863931
1999.0000000;-0.4149047
2000.0000000;-0.8437262
2001.0000000;0.7462969
2002.0000000;-0.7027215
2003.0000000;-2.5700679
2004.0000000;-2.0997300
2005.0000000;-2.2183318
2006.0000000;-1.8447156
2007.0000000;-1.5103912
2008.0000000;-0.9396303
2009.0000000;-2.1670418
2010.0000000;-0.8555468
2011.0000000;-2.2734892
2012.0000000;-2.0291080
2013.0000000;-0.6492741
2014.0000000;-1.0201150
2015.0000000;-2.0801997