1967.0000000;-0.9091781
1968.0000000;0.2330766
1969.0000000;-0.2634156
1970.0000000;-0.7657726
1971.0000000;-0.8953130
1972.0000000;-0.0673157
1973.0000000;-1.4062226
1974.0000000;-0.9050310
1975.0000000;-0.0230010
1976.0000000;-1.0998470
1977.0000000;0.4604913
1978.0000000;0.3560735
1979.0000000;-0.4248907
1980.0000000;0.1015098
1981.0000000;-0.3000625
1982.0000000;-0.3322074
1983.0000000;-0.3216629
1984.0000000;0.2762529
1985.0000000;-0.4092256
1986.0000000;-1.2307296
1987.0000000;-0.3880229
1988.0000000;-0.1089344
1989.0000000;-1.4775825
1990.0000000;-0.9276872
1991.0000000;-0.7556067
1992.0000000;-0.8392527
1993.0000000;-0.5390141
1994.0000000;-0.3225883
1995.0000000;0.2379384
1996.0000000;-0.0492548
1997.0000000;-0.4067501
1998.0000000;-1.3833103
1999.0000000;-0.5038316
2000.0000000;-0.8135997
2001.0000000;0.7874128
2002.0000000;-0.2017985
2003.0000000;-2.4148395
2004.0000000;-1.8491415
2005.0000000;-1.9828012
2006.0000000;-1.6082853
2007.0000000;-0.8404911
2008.0000000;-0.4939578
2009.0000000;-1.8083341
2010.0000000;-0.5398204
2011.0000000;-1.8531690
2012.0000000;-1.6102307
2013.0000000;-0.4291375
2014.0000000;-0.7359000
2015.0000000;-1.5782052