1967.0000000;-1.3104266
1968.0000000;0.3828784
1969.0000000;-0.9080838
1970.0000000;-0.6921754
1971.0000000;-1.5337353
1972.0000000;-0.6218284
1973.0000000;-0.7718111
1974.0000000;-1.0549183
1975.0000000;-1.1754463
1976.0000000;-1.4930941
1977.0000000;-0.0203403
1978.0000000;-0.0385311
1979.0000000;-0.5599031
1980.0000000;-0.2405131
1981.0000000;-0.1137149
1982.0000000;-0.1935600
1983.0000000;-0.4856628
1984.0000000;0.8063363
1985.0000000;0.3143381
1986.0000000;-1.2469366
1987.0000000;-0.7554190
1988.0000000;-0.2950923
1989.0000000;-1.3884739
1990.0000000;-1.5953588
1991.0000000;-1.6291935
1992.0000000;-1.7222832
1993.0000000;-1.0631492
1994.0000000;-1.0350800
1995.0000000;0.3651438
1996.0000000;-0.5591875
1997.0000000;-1.0650663
1998.0000000;-1.9255577
1999.0000000;-0.9060996
2000.0000000;-1.3686045
2001.0000000;1.0203332
2002.0000000;-0.5702295
2003.0000000;-2.3662078
2004.0000000;-2.0330582
2005.0000000;-2.0401812
2006.0000000;-1.4135077
2007.0000000;-1.2998776
2008.0000000;-1.5874963
2009.0000000;-2.0970314
2010.0000000;-1.2397459
2011.0000000;-2.0271406
2012.0000000;-2.1103439
2013.0000000;-1.2122774
2014.0000000;-1.2867327
2015.0000000;-1.9691582