1967.0000000;-0.6133724
1968.0000000;-0.0412920
1969.0000000;-0.5374234
1970.0000000;-0.3125300
1971.0000000;-1.2475431
1972.0000000;-0.4042385
1973.0000000;-1.0524011
1974.0000000;-0.6409593
1975.0000000;-0.4200510
1976.0000000;-1.2297407
1977.0000000;-0.2168269
1978.0000000;0.5185418
1979.0000000;-0.1628523
1980.0000000;0.3721175
1981.0000000;0.1644886
1982.0000000;0.0128676
1983.0000000;-0.2580208
1984.0000000;0.9152387
1985.0000000;0.2756971
1986.0000000;-1.1752274
1987.0000000;0.0230353
1988.0000000;0.3136857
1989.0000000;-1.0904593
1990.0000000;-1.0725280
1991.0000000;-1.3082068
1992.0000000;-1.0019879
1993.0000000;-0.5952481
1994.0000000;-0.4468377
1995.0000000;0.8450093
1996.0000000;-0.1958417
1997.0000000;-0.7464387
1998.0000000;-1.5638092
1999.0000000;-0.7286021
2000.0000000;-0.7512027
2001.0000000;0.4698043
2002.0000000;-0.5299963
2003.0000000;-2.7459342
2004.0000000;-1.7893538
2005.0000000;-2.0155249
2006.0000000;-1.3163552
2007.0000000;-0.9702829
2008.0000000;-1.2847402
2009.0000000;-2.4505463
2010.0000000;-0.6735243
2011.0000000;-2.2303801
2012.0000000;-2.3208833
2013.0000000;-0.5915046
2014.0000000;-0.7930784
2015.0000000;-2.1823297