1967.0000000;-0.3464350
1968.0000000;0.8891883
1969.0000000;-0.6840903
1970.0000000;-0.2349586
1971.0000000;-0.3882675
1972.0000000;-0.5165576
1973.0000000;-0.7883526
1974.0000000;-0.9309254
1975.0000000;-0.5973667
1976.0000000;-1.1979668
1977.0000000;0.3033209
1978.0000000;0.2364697
1979.0000000;0.0208465
1980.0000000;0.5615244
1981.0000000;-0.0065306
1982.0000000;-0.2255100
1983.0000000;0.0268356
1984.0000000;1.8502254
1985.0000000;1.5414870
1986.0000000;-1.3049951
1987.0000000;0.8595226
1988.0000000;0.5960848
1989.0000000;-0.5358030
1990.0000000;-1.6713476
1991.0000000;-1.1029087
1992.0000000;-1.1710148
1993.0000000;-0.6466982
1994.0000000;-0.0748108
1995.0000000;1.1275804
1996.0000000;0.1292231
1997.0000000;-0.5614877
1998.0000000;-1.6689943
1999.0000000;-0.2536289
2000.0000000;-0.6353297
2001.0000000;0.9403341
2002.0000000;-0.0606820
2003.0000000;-2.1021476
2004.0000000;-1.8328674
2005.0000000;-1.8235022
2006.0000000;-0.9495844
2007.0000000;-0.3809480
2008.0000000;-1.3540549
2009.0000000;-2.3651323
2010.0000000;-0.8160968
2011.0000000;-2.1379890
2012.0000000;-2.3277850
2013.0000000;-0.8334587
2014.0000000;-1.0331762
2015.0000000;-2.0355968