1967.0000000;-0.8063796
1968.0000000;0.1250776
1969.0000000;-0.5887234
1970.0000000;-0.9197649
1971.0000000;-0.9750661
1972.0000000;-0.2191072
1973.0000000;-1.6862925
1974.0000000;-1.2375518
1975.0000000;0.0526378
1976.0000000;-1.2769434
1977.0000000;0.4944597
1978.0000000;0.6294527
1979.0000000;-0.2647266
1980.0000000;0.4463687
1981.0000000;0.0677500
1982.0000000;-0.1052165
1983.0000000;-0.3772101
1984.0000000;0.6050130
1985.0000000;-0.7010953
1986.0000000;-1.4466590
1987.0000000;-0.4718451
1988.0000000;0.0769749
1989.0000000;-1.5699461
1990.0000000;-1.5390019
1991.0000000;-0.8807067
1992.0000000;-0.7226343
1993.0000000;-0.6160004
1994.0000000;-0.2943514
1995.0000000;0.5629982
1996.0000000;-0.4077452
1997.0000000;-0.8716033
1998.0000000;-1.7046390
1999.0000000;-1.0226603
2000.0000000;-1.2133534
2001.0000000;0.7091212
2002.0000000;-1.3092008
2003.0000000;-2.8299375
2004.0000000;-2.0767732
2005.0000000;-2.2475073
2006.0000000;-2.0824289
2007.0000000;-1.6285412
2008.0000000;-1.1638266
2009.0000000;-2.5229177
2010.0000000;-0.7978656
2011.0000000;-2.5903668
2012.0000000;-2.1783528
2013.0000000;-0.6641204
2014.0000000;-1.0294921
2015.0000000;-2.5611978