1967.0000000;-0.9957646
1968.0000000;0.2459653
1969.0000000;-0.3492151
1970.0000000;-0.8033419
1971.0000000;-0.9957510
1972.0000000;-0.1222366
1973.0000000;-1.4602480
1974.0000000;-1.0263023
1975.0000000;0.1414910
1976.0000000;-1.1058567
1977.0000000;0.5281534
1978.0000000;0.5837150
1979.0000000;-0.3627769
1980.0000000;0.3640822
1981.0000000;-0.0398480
1982.0000000;-0.2274884
1983.0000000;-0.4355509
1984.0000000;0.4484321
1985.0000000;-0.4889425
1986.0000000;-1.3239597
1987.0000000;-0.4169123
1988.0000000;0.1196663
1989.0000000;-1.5529152
1990.0000000;-1.3760118
1991.0000000;-0.9405555
1992.0000000;-0.7340641
1993.0000000;-0.6510738
1994.0000000;-0.3798194
1995.0000000;0.4244670
1996.0000000;-0.3153417
1997.0000000;-0.6949406
1998.0000000;-1.5874770
1999.0000000;-0.6458799
2000.0000000;-0.8852642
2001.0000000;0.7534387
2002.0000000;-0.8081081
2003.0000000;-2.6659055
2004.0000000;-2.0835299
2005.0000000;-2.1677504
2006.0000000;-1.9322534
2007.0000000;-1.4706225
2008.0000000;-0.9251320
2009.0000000;-2.2789974
2010.0000000;-0.7772498
2011.0000000;-2.2996535
2012.0000000;-1.9440956
2013.0000000;-0.5483458
2014.0000000;-0.8848025
2015.0000000;-2.1289337