1967.0000000;-1.2575097
1968.0000000;0.8044621
1969.0000000;-0.3369625
1970.0000000;-0.5274698
1971.0000000;-1.0092199
1972.0000000;0.1754707
1973.0000000;-0.9116977
1974.0000000;-0.7473687
1975.0000000;-0.0551914
1976.0000000;-0.9863278
1977.0000000;0.2626487
1978.0000000;0.2195770
1979.0000000;-0.7173547
1980.0000000;-0.3114331
1981.0000000;-0.4020420
1982.0000000;-0.7573548
1983.0000000;-0.3282951
1984.0000000;0.7985843
1985.0000000;-0.3044003
1986.0000000;-1.2291653
1987.0000000;-0.4012416
1988.0000000;-0.2525274
1989.0000000;-1.4759272
1990.0000000;-0.6468939
1991.0000000;-1.2762693
1992.0000000;-0.8261043
1993.0000000;-0.5737901
1994.0000000;-0.4077059
1995.0000000;0.3147526
1996.0000000;-0.0801244
1997.0000000;-0.3160998
1998.0000000;-1.4744475
1999.0000000;-0.5329205
2000.0000000;-0.8359799
2001.0000000;0.4305755
2002.0000000;0.1294619
2003.0000000;-2.1637099
2004.0000000;-1.9809325
2005.0000000;-1.9799948
2006.0000000;-1.6251647
2007.0000000;-0.9087567
2008.0000000;-0.8446279
2009.0000000;-1.7670089
2010.0000000;-0.5930880
2011.0000000;-1.9048407
2012.0000000;-1.7255017
2013.0000000;-0.4296492
2014.0000000;-0.8015649
2015.0000000;-1.5303116