1967.0000000;-1.2553550
1968.0000000;0.5553206
1969.0000000;-0.3323956
1970.0000000;-0.9284191
1971.0000000;-0.9068479
1972.0000000;-0.0564001
1973.0000000;-1.2017542
1974.0000000;-0.9515972
1975.0000000;0.0914231
1976.0000000;-1.0675081
1977.0000000;0.5765478
1978.0000000;0.3512469
1979.0000000;-0.6163145
1980.0000000;-0.0480639
1981.0000000;-0.7234536
1982.0000000;-0.5044819
1983.0000000;-0.1954277
1984.0000000;0.5777774
1985.0000000;-0.5373824
1986.0000000;-1.2467012
1987.0000000;-0.5222181
1988.0000000;-0.2260966
1989.0000000;-1.5851475
1990.0000000;-0.7967508
1991.0000000;-1.0319362
1992.0000000;-0.9493827
1993.0000000;-0.6285650
1994.0000000;-0.2925956
1995.0000000;0.3053935
1996.0000000;-0.1967447
1997.0000000;-0.3137773
1998.0000000;-1.5004230
1999.0000000;-0.5781771
2000.0000000;-0.9346207
2001.0000000;0.5925298
2002.0000000;-0.6500891
2003.0000000;-2.4975810
2004.0000000;-2.0906887
2005.0000000;-2.1562715
2006.0000000;-1.7422094
2007.0000000;-1.3639665
2008.0000000;-0.9764495
2009.0000000;-1.9554291
2010.0000000;-0.6842525
2011.0000000;-2.0594256
2012.0000000;-1.7792419
2013.0000000;-0.4762688
2014.0000000;-0.7789491
2015.0000000;-1.3299410