1967.0000000;-0.5538924
1968.0000000;0.6276602
1969.0000000;-1.0109332
1970.0000000;-0.4653533
1971.0000000;-0.9240655
1972.0000000;-0.5537738
1973.0000000;-1.0196669
1974.0000000;-1.0645233
1975.0000000;-0.7084859
1976.0000000;-1.4057018
1977.0000000;0.3967792
1978.0000000;0.0534338
1979.0000000;-0.3020297
1980.0000000;0.3740142
1981.0000000;0.1125607
1982.0000000;-0.3472614
1983.0000000;-0.0787560
1984.0000000;1.7508156
1985.0000000;1.0572524
1986.0000000;-1.4908655
1987.0000000;0.2483649
1988.0000000;0.3307601
1989.0000000;-1.1969771
1990.0000000;-1.6404362
1991.0000000;-1.4580669
1992.0000000;-1.2531264
1993.0000000;-0.6453320
1994.0000000;-0.1908733
1995.0000000;1.0757408
1996.0000000;0.2064313
1997.0000000;-0.5950446
1998.0000000;-1.5928187
1999.0000000;-0.4465611
2000.0000000;-0.9402556
2001.0000000;1.1762226
2002.0000000;-0.3255069
2003.0000000;-2.3808284
2004.0000000;-1.9363984
2005.0000000;-1.9504559
2006.0000000;-1.0324864
2007.0000000;-0.2902343
2008.0000000;-1.4075855
2009.0000000;-2.5626395
2010.0000000;-0.7330508
2011.0000000;-2.2547016
2012.0000000;-2.3635097
2013.0000000;-0.8596479
2014.0000000;-0.7676260
2015.0000000;-2.0452766