1967.0000000;-0.2894749
1968.0000000;0.1689389
1969.0000000;-0.7345001
1970.0000000;-0.4281259
1971.0000000;-1.0361993
1972.0000000;-0.6672550
1973.0000000;-1.0688362
1974.0000000;-0.8729912
1975.0000000;-0.4800605
1976.0000000;-1.2037840
1977.0000000;0.2122190
1978.0000000;0.2882351
1979.0000000;-0.0912384
1980.0000000;0.6136264
1981.0000000;0.1191712
1982.0000000;-0.2349517
1983.0000000;-0.0935702
1984.0000000;0.8682543
1985.0000000;0.4967610
1986.0000000;-1.3757124
1987.0000000;0.3510929
1988.0000000;0.3081028
1989.0000000;-0.9394740
1990.0000000;-1.3665822
1991.0000000;-0.9794613
1992.0000000;-0.8779274
1993.0000000;-0.5527338
1994.0000000;-0.3056113
1995.0000000;0.8776190
1996.0000000;-0.0101974
1997.0000000;-0.6427757
1998.0000000;-1.5167444
1999.0000000;-0.5848960
2000.0000000;-1.0728624
2001.0000000;0.6725063
2002.0000000;-0.5377511
2003.0000000;-2.5843134
2004.0000000;-1.5837904
2005.0000000;-1.8208615
2006.0000000;-0.8562268
2007.0000000;-0.3590271
2008.0000000;-1.1127729
2009.0000000;-2.4657950
2010.0000000;-0.3017256
2011.0000000;-2.2422628
2012.0000000;-2.1158683
2013.0000000;-0.5698495
2014.0000000;-0.6568375
2015.0000000;-1.8781412