1967.0000000;-1.2118924
1968.0000000;0.2490205
1969.0000000;-0.4165955
1970.0000000;-0.8340580
1971.0000000;-0.9484614
1972.0000000;-0.0856442
1973.0000000;-1.3877301
1974.0000000;-1.1599145
1975.0000000;0.1476126
1976.0000000;-1.2218851
1977.0000000;0.4375407
1978.0000000;0.5342020
1979.0000000;-0.6233841
1980.0000000;0.2120482
1981.0000000;-0.2479811
1982.0000000;-0.3015527
1983.0000000;-0.5022489
1984.0000000;0.5988393
1985.0000000;-0.5664392
1986.0000000;-1.3560183
1987.0000000;-0.5631763
1988.0000000;0.0166216
1989.0000000;-1.5661783
1990.0000000;-1.3008579
1991.0000000;-1.0378770
1992.0000000;-0.7780882
1993.0000000;-0.7479857
1994.0000000;-0.6462607
1995.0000000;0.3613929
1996.0000000;-0.5035509
1997.0000000;-0.7875421
1998.0000000;-1.6919713
1999.0000000;-0.6830674
2000.0000000;-1.0619539
2001.0000000;0.6417387
2002.0000000;-0.6378733
2003.0000000;-2.7691207
2004.0000000;-2.2009177
2005.0000000;-2.2605715
2006.0000000;-2.0492647
2007.0000000;-1.6652135
2008.0000000;-1.1322179
2009.0000000;-2.3293786
2010.0000000;-0.9208437
2011.0000000;-2.3808398
2012.0000000;-2.0590069
2013.0000000;-0.6953855
2014.0000000;-0.9530227
2015.0000000;-2.2236633