1967.0000000;-1.4473344
1968.0000000;0.2593431
1969.0000000;-0.8181527
1970.0000000;-0.6706335
1971.0000000;-1.4908916
1972.0000000;-0.6058645
1973.0000000;-0.9034222
1974.0000000;-1.0385413
1975.0000000;-0.6500239
1976.0000000;-1.4193498
1977.0000000;-0.2034286
1978.0000000;0.2215765
1979.0000000;-0.2219004
1980.0000000;-0.0426193
1981.0000000;-0.1305199
1982.0000000;-0.0281014
1983.0000000;-0.3640960
1984.0000000;0.9851214
1985.0000000;0.5449263
1986.0000000;-1.2667303
1987.0000000;-0.2813916
1988.0000000;0.2019809
1989.0000000;-1.3816285
1990.0000000;-1.7020422
1991.0000000;-1.7370470
1992.0000000;-1.3855073
1993.0000000;-0.6315755
1994.0000000;-0.4830574
1995.0000000;0.5885499
1996.0000000;-0.1204820
1997.0000000;-0.8219156
1998.0000000;-1.7026980
1999.0000000;-0.7474471
2000.0000000;-0.9132657
2001.0000000;0.6585259
2002.0000000;-0.2718458
2003.0000000;-2.1474128
2004.0000000;-1.8145373
2005.0000000;-1.8918749
2006.0000000;-1.3489795
2007.0000000;-0.7936040
2008.0000000;-1.5202136
2009.0000000;-1.9823794
2010.0000000;-0.9678154
2011.0000000;-1.9102573
2012.0000000;-2.0644035
2013.0000000;-0.7886562
2014.0000000;-0.9731741
2015.0000000;-1.7390317