1967.0000000;-0.8627188
1968.0000000;1.3729059
1969.0000000;-1.4850198
1970.0000000;-0.5283001
1971.0000000;-1.0714779
1972.0000000;-0.9318700
1973.0000000;-0.6915685
1974.0000000;-0.7723039
1975.0000000;-0.9836732
1976.0000000;-1.6333684
1977.0000000;0.4770233
1978.0000000;0.0092682
1979.0000000;0.2354236
1980.0000000;0.1596806
1981.0000000;-0.4722328
1982.0000000;-0.1241721
1983.0000000;0.0405773
1984.0000000;1.9354072
1985.0000000;1.7385256
1986.0000000;-1.4126562
1987.0000000;0.7632759
1988.0000000;-0.2869759
1989.0000000;-1.2861457
1990.0000000;-1.4545337
1991.0000000;-1.5750868
1992.0000000;-1.5760077
1993.0000000;-0.6654021
1994.0000000;-0.1361971
1995.0000000;1.0016639
1996.0000000;0.2087601
1997.0000000;-0.6331747
1998.0000000;-1.9196733
1999.0000000;-0.1615100
2000.0000000;-0.7058697
2001.0000000;1.2243147
2002.0000000;-0.4760514
2003.0000000;-2.2004941
2004.0000000;-2.0772943
2005.0000000;-2.0732822
2006.0000000;-1.1297538
2007.0000000;-0.6923485
2008.0000000;-1.5676360
2009.0000000;-2.3176401
2010.0000000;-0.9843405
2011.0000000;-2.0638189
2012.0000000;-2.3074718
2013.0000000;-0.9043078
2014.0000000;-0.6563056
2015.0000000;-1.4926929