1967.0000000;-1.3191261
1968.0000000;-0.0126123
1969.0000000;-0.5053462
1970.0000000;-1.1291142
1971.0000000;-0.6424886
1972.0000000;-0.2547005
1973.0000000;-1.7222394
1974.0000000;-1.0106156
1975.0000000;-0.8990601
1976.0000000;-1.0139471
1977.0000000;0.7092521
1978.0000000;0.5027509
1979.0000000;0.1566367
1980.0000000;0.0465268
1981.0000000;-0.5826011
1982.0000000;-0.2651620
1983.0000000;-0.2217232
1984.0000000;0.1320653
1985.0000000;-0.7847099
1986.0000000;-1.2908537
1987.0000000;-0.8658832
1988.0000000;-0.2687473
1989.0000000;-1.6539662
1990.0000000;-1.2401707
1991.0000000;-0.8139681
1992.0000000;-1.0540547
1993.0000000;-0.7517312
1994.0000000;-0.5660905
1995.0000000;-0.0437853
1996.0000000;-0.0047279
1997.0000000;-0.7104006
1998.0000000;-1.6622241
1999.0000000;-1.2657934
2000.0000000;-1.5901890
2001.0000000;0.9199235
2002.0000000;-1.0795126
2003.0000000;-2.4984598
2004.0000000;-1.9062512
2005.0000000;-2.2783973
2006.0000000;-1.7174113
2007.0000000;-1.7097228
2008.0000000;-0.8646040
2009.0000000;-1.9746667
2010.0000000;-0.5308115
2011.0000000;-2.2175751
2012.0000000;-1.9154118
2013.0000000;-0.8345858
2014.0000000;-1.0709391
2015.0000000;-2.4930756