1967.0000000;-0.9935256
1968.0000000;0.2525180
1969.0000000;-0.3067305
1970.0000000;-0.7606308
1971.0000000;-0.7948055
1972.0000000;-0.1009263
1973.0000000;-1.4148394
1974.0000000;-0.9991304
1975.0000000;0.1308793
1976.0000000;-1.0897117
1977.0000000;0.4967747
1978.0000000;0.5565757
1979.0000000;-0.4162508
1980.0000000;0.3295212
1981.0000000;-0.0911208
1982.0000000;-0.2174440
1983.0000000;-0.4394716
1984.0000000;0.4626829
1985.0000000;-0.4841138
1986.0000000;-1.3052961
1987.0000000;-0.4227992
1988.0000000;0.0882556
1989.0000000;-1.5313255
1990.0000000;-1.3121816
1991.0000000;-0.9854693
1992.0000000;-0.7031500
1993.0000000;-0.6622314
1994.0000000;-0.4264008
1995.0000000;0.4017372
1996.0000000;-0.3159616
1997.0000000;-0.7033635
1998.0000000;-1.5841389
1999.0000000;-0.6501138
2000.0000000;-0.9067901
2001.0000000;0.7313415
2002.0000000;-0.7834837
2003.0000000;-2.6756873
2004.0000000;-2.0903883
2005.0000000;-2.1681590
2006.0000000;-1.9841104
2007.0000000;-1.5005226
2008.0000000;-0.9880149
2009.0000000;-2.3199263
2010.0000000;-0.8143603
2011.0000000;-2.3327482
2012.0000000;-1.9682411
2013.0000000;-0.5977291
2014.0000000;-0.9211766
2015.0000000;-2.2069728