1967.0000000;-0.9638387
1968.0000000;0.2990621
1969.0000000;-0.1756523
1970.0000000;-0.7378954
1971.0000000;-0.6417971
1972.0000000;0.0279294
1973.0000000;-1.0006609
1974.0000000;-0.9540892
1975.0000000;0.1244687
1976.0000000;-1.0741327
1977.0000000;0.5174174
1978.0000000;0.4290164
1979.0000000;-0.4642102
1980.0000000;0.0364156
1981.0000000;-0.3357845
1982.0000000;-0.2913951
1983.0000000;-0.2776572
1984.0000000;0.4424750
1985.0000000;-0.4571153
1986.0000000;-1.2241405
1987.0000000;-0.3833701
1988.0000000;-0.0896510
1989.0000000;-1.5454434
1990.0000000;-0.8580045
1991.0000000;-0.7661129
1992.0000000;-0.8011893
1993.0000000;-0.5500880
1994.0000000;-0.1859983
1995.0000000;0.3638481
1996.0000000;-0.0452661
1997.0000000;-0.2564937
1998.0000000;-1.3477125
1999.0000000;-0.4330772
2000.0000000;-0.7922283
2001.0000000;0.7008388
2002.0000000;-0.2726474
2003.0000000;-2.4014785
2004.0000000;-1.9964781
2005.0000000;-2.0908041
2006.0000000;-1.6671119
2007.0000000;-1.0240800
2008.0000000;-0.6507285
2009.0000000;-1.9590615
2010.0000000;-0.6107982
2011.0000000;-2.0697517
2012.0000000;-1.8113203
2013.0000000;-0.5432667
2014.0000000;-0.8368520
2015.0000000;-1.8133965