1967.0000000;-1.6861548
1968.0000000;0.1311060
1969.0000000;-1.0700583
1970.0000000;-0.8052615
1971.0000000;-1.6245669
1972.0000000;-0.6549982
1973.0000000;-1.0800691
1974.0000000;-1.0781066
1975.0000000;-0.7708111
1976.0000000;-1.3965416
1977.0000000;-0.0159790
1978.0000000;0.1103492
1979.0000000;-0.0987208
1980.0000000;-0.2087601
1981.0000000;-0.1699875
1982.0000000;-0.0011118
1983.0000000;-0.1975923
1984.0000000;1.0973558
1985.0000000;0.7983412
1986.0000000;-1.3202285
1987.0000000;-0.0513533
1988.0000000;0.3461744
1989.0000000;-1.4875195
1990.0000000;-1.9002137
1991.0000000;-1.8674018
1992.0000000;-1.5740023
1993.0000000;-0.6961374
1994.0000000;-0.4955229
1995.0000000;0.6070358
1996.0000000;-0.1864313
1997.0000000;-0.8675758
1998.0000000;-1.8007267
1999.0000000;-0.7938609
2000.0000000;-1.0861616
2001.0000000;0.8909951
2002.0000000;-0.5715168
2003.0000000;-2.3364019
2004.0000000;-1.9689605
2005.0000000;-2.1090469
2006.0000000;-1.5076649
2007.0000000;-0.9815011
2008.0000000;-1.6168621
2009.0000000;-2.0991848
2010.0000000;-1.2512000
2011.0000000;-2.0557864
2012.0000000;-2.2364559
2013.0000000;-0.7434660
2014.0000000;-0.9685421
2015.0000000;-1.8647515