1967.0000000;-0.5770763
1968.0000000;-0.5474751
1969.0000000;-0.5843010
1970.0000000;-0.6032220
1971.0000000;-1.2740667
1972.0000000;-0.3646453
1973.0000000;-1.3097370
1974.0000000;-0.5256079
1975.0000000;-0.5697993
1976.0000000;-0.8914692
1977.0000000;-0.1390784
1978.0000000;0.3926865
1979.0000000;-0.1305999
1980.0000000;0.2877163
1981.0000000;0.0563620
1982.0000000;-0.0149316
1983.0000000;-0.2274992
1984.0000000;0.5114972
1985.0000000;-0.0920500
1986.0000000;-1.2026683
1987.0000000;-0.1117995
1988.0000000;0.1353937
1989.0000000;-1.0852129
1990.0000000;-0.9413871
1991.0000000;-0.8862311
1992.0000000;-0.8210597
1993.0000000;-0.4863603
1994.0000000;-0.3927528
1995.0000000;0.7359516
1996.0000000;-0.1934155
1997.0000000;-0.6918286
1998.0000000;-1.4754839
1999.0000000;-0.8372865
2000.0000000;-0.8004808
2001.0000000;0.3080484
2002.0000000;-0.8271477
2003.0000000;-2.7502477
2004.0000000;-1.3634599
2005.0000000;-2.1324434
2006.0000000;-0.9351028
2007.0000000;-0.7674820
2008.0000000;-0.9730214
2009.0000000;-2.4053016
2010.0000000;-0.4465307
2011.0000000;-2.3798075
2012.0000000;-2.0222981
2013.0000000;-0.7055334
2014.0000000;-0.7790217
2015.0000000;-2.1771712