1967.0000000;-1.1947436
1968.0000000;0.1302245
1969.0000000;-0.2520671
1970.0000000;-0.9536269
1971.0000000;-0.6611894
1972.0000000;-0.1575660
1973.0000000;-1.5275500
1974.0000000;-0.8727040
1975.0000000;-0.7069764
1976.0000000;-0.8264928
1977.0000000;0.6696266
1978.0000000;0.4294897
1979.0000000;-0.0310220
1980.0000000;-0.1204492
1981.0000000;-0.7182640
1982.0000000;-0.2962855
1983.0000000;-0.1716735
1984.0000000;0.0231737
1985.0000000;-0.6851261
1986.0000000;-1.3322449
1987.0000000;-0.6952596
1988.0000000;-0.5076576
1989.0000000;-1.5676333
1990.0000000;-0.7903495
1991.0000000;-0.7857472
1992.0000000;-0.7564030
1993.0000000;-0.6313578
1994.0000000;-0.5092319
1995.0000000;-0.0755285
1996.0000000;0.1120282
1997.0000000;-0.4129182
1998.0000000;-1.4570539
1999.0000000;-0.9357960
2000.0000000;-1.3641490
2001.0000000;1.0248148
2002.0000000;-0.6834072
2003.0000000;-2.1979551
2004.0000000;-1.6056511
2005.0000000;-2.0863628
2006.0000000;-1.5080723
2007.0000000;-1.1769220
2008.0000000;-0.6592689
2009.0000000;-1.7550468
2010.0000000;-0.5450116
2011.0000000;-2.0144887
2012.0000000;-1.7266760
2013.0000000;-0.7979702
2014.0000000;-0.9300334
2015.0000000;-2.0465202