1967.0000000;-0.1696746
1968.0000000;0.1736867
1969.0000000;-0.6789511
1970.0000000;-0.3833981
1971.0000000;-0.9585850
1972.0000000;-0.6900150
1973.0000000;-0.9941404
1974.0000000;-0.8178841
1975.0000000;-0.3536234
1976.0000000;-1.2846158
1977.0000000;0.2664199
1978.0000000;0.4327414
1979.0000000;0.0193192
1980.0000000;0.7114557
1981.0000000;0.2262884
1982.0000000;-0.1505152
1983.0000000;-0.0488877
1984.0000000;0.9700739
1985.0000000;0.8205184
1986.0000000;-1.3353932
1987.0000000;0.6635140
1988.0000000;0.4692831
1989.0000000;-0.7427999
1990.0000000;-1.4327816
1991.0000000;-1.0574758
1992.0000000;-0.7337853
1993.0000000;-0.5417953
1994.0000000;-0.4658787
1995.0000000;1.0369501
1996.0000000;-0.1319142
1997.0000000;-0.6969408
1998.0000000;-1.5289264
1999.0000000;-0.5187044
2000.0000000;-1.1127251
2001.0000000;0.7116050
2002.0000000;-0.6981970
2003.0000000;-2.8315589
2004.0000000;-1.5846844
2005.0000000;-1.9826391
2006.0000000;-0.8964503
2007.0000000;-0.5884703
2008.0000000;-1.1824914
2009.0000000;-2.6655807
2010.0000000;-0.6628091
2011.0000000;-2.4943829
2012.0000000;-2.3137188
2013.0000000;-0.6710647
2014.0000000;-0.7615366
2015.0000000;-2.2122219