1967.0000000;-1.3982167
1968.0000000;1.0470915
1969.0000000;-0.4280168
1970.0000000;-0.5554422
1971.0000000;-1.0149537
1972.0000000;0.2053312
1973.0000000;-0.9992917
1974.0000000;-0.8712782
1975.0000000;0.1831725
1976.0000000;-1.2415813
1977.0000000;0.4527788
1978.0000000;0.3828073
1979.0000000;-0.8808684
1980.0000000;-0.1911115
1981.0000000;-0.3149294
1982.0000000;-0.7210916
1983.0000000;-0.2180548
1984.0000000;1.0762047
1985.0000000;-0.3443874
1986.0000000;-1.3709691
1987.0000000;-0.3876544
1988.0000000;-0.0354928
1989.0000000;-1.6869777
1990.0000000;-0.7818251
1991.0000000;-1.1437812
1992.0000000;-0.9081264
1993.0000000;-0.5020766
1994.0000000;-0.1694916
1995.0000000;0.5318059
1996.0000000;-0.1819781
1997.0000000;-0.0624855
1998.0000000;-1.5689890
1999.0000000;-0.4003546
2000.0000000;-0.8936176
2001.0000000;0.5845790
2002.0000000;-0.0695678
2003.0000000;-2.2858415
2004.0000000;-2.2457671
2005.0000000;-2.3172035
2006.0000000;-1.7788843
2007.0000000;-1.2545347
2008.0000000;-1.1534252
2009.0000000;-2.0385981
2010.0000000;-0.9115500
2011.0000000;-2.2090468
2012.0000000;-2.0203848
2013.0000000;-0.6295121
2014.0000000;-0.7988431
2015.0000000;-1.8270283