1967.0000000;-1.3163488
1968.0000000;0.2184973
1969.0000000;-0.3336339
1970.0000000;-0.9825819
1971.0000000;-0.6747578
1972.0000000;-0.0677968
1973.0000000;-1.1213827
1974.0000000;-1.0087037
1975.0000000;-0.7625620
1976.0000000;-0.9502400
1977.0000000;0.6668645
1978.0000000;0.4617246
1979.0000000;-0.0281332
1980.0000000;-0.1189987
1981.0000000;-0.8567311
1982.0000000;-0.4370565
1983.0000000;-0.2375757
1984.0000000;0.1361507
1985.0000000;-0.7270020
1986.0000000;-1.2441962
1987.0000000;-0.6877565
1988.0000000;-0.3404512
1989.0000000;-1.5568538
1990.0000000;-1.0034044
1991.0000000;-0.9245572
1992.0000000;-0.7422873
1993.0000000;-0.8421299
1994.0000000;-0.5533807
1995.0000000;0.0763696
1996.0000000;-0.0002460
1997.0000000;-0.6786225
1998.0000000;-1.5830090
1999.0000000;-1.0832450
2000.0000000;-1.4871887
2001.0000000;0.7659731
2002.0000000;-0.9421276
2003.0000000;-2.3614860
2004.0000000;-1.9136627
2005.0000000;-2.1448750
2006.0000000;-1.5812745
2007.0000000;-1.6660104
2008.0000000;-0.8030100
2009.0000000;-1.9134189
2010.0000000;-0.6722192
2011.0000000;-2.1788783
2012.0000000;-1.8736663
2013.0000000;-0.8715844
2014.0000000;-1.1643634
2015.0000000;-2.3848641