1967.0000000;-1.2608420
1968.0000000;-0.2573649
1969.0000000;-0.2145540
1970.0000000;-1.0968914
1971.0000000;-1.1342022
1972.0000000;-0.3944395
1973.0000000;-1.2630422
1974.0000000;-1.0861686
1975.0000000;0.0212277
1976.0000000;-0.6660779
1977.0000000;0.4783057
1978.0000000;0.5174860
1979.0000000;-0.6747085
1980.0000000;0.2678573
1981.0000000;-0.0253770
1982.0000000;-0.4730132
1983.0000000;-0.5914717
1984.0000000;0.6865847
1985.0000000;-0.0130735
1986.0000000;-1.3738680
1987.0000000;-0.9398509
1988.0000000;-0.5172870
1989.0000000;-1.5999765
1990.0000000;-1.6946661
1991.0000000;-1.7029386
1992.0000000;-1.7628894
1993.0000000;-0.8509305
1994.0000000;-0.5364267
1995.0000000;0.4863220
1996.0000000;-0.3519720
1997.0000000;-0.9475790
1998.0000000;-1.8721008
1999.0000000;-0.8688233
2000.0000000;-1.3621011
2001.0000000;0.7446164
2002.0000000;-0.2437923
2003.0000000;-2.4790750
2004.0000000;-1.9719627
2005.0000000;-1.9682243
2006.0000000;-1.6259990
2007.0000000;-1.2996838
2008.0000000;-1.1421899
2009.0000000;-1.8163286
2010.0000000;-1.1929797
2011.0000000;-1.9995165
2012.0000000;-2.1271386
2013.0000000;-1.2216825
2014.0000000;-1.2221575
2015.0000000;-1.9148300