1967.0000000;-0.7842196
1968.0000000;0.3374797
1969.0000000;-0.0066501
1970.0000000;-0.6212997
1971.0000000;-0.4903964
1972.0000000;0.0232399
1973.0000000;-0.8333172
1974.0000000;-0.8732810
1975.0000000;0.1487896
1976.0000000;-0.8162938
1977.0000000;0.7295696
1978.0000000;0.6579965
1979.0000000;-0.1260366
1980.0000000;0.3173685
1981.0000000;0.0205058
1982.0000000;-0.0716120
1983.0000000;-0.2469309
1984.0000000;0.4054760
1985.0000000;-0.5032663
1986.0000000;-1.2199795
1987.0000000;-0.3749859
1988.0000000;0.1128583
1989.0000000;-1.6046615
1990.0000000;-0.9768495
1991.0000000;-0.6635500
1992.0000000;-0.7383368
1993.0000000;-0.5063021
1994.0000000;-0.2222956
1995.0000000;0.3575034
1996.0000000;-0.1028509
1997.0000000;-0.4033531
1998.0000000;-1.5741398
1999.0000000;-0.7148269
2000.0000000;-0.9168392
2001.0000000;0.9177386
2002.0000000;-0.8310727
2003.0000000;-2.6384423
2004.0000000;-1.9713771
2005.0000000;-2.1653190
2006.0000000;-1.7498429
2007.0000000;-0.9607231
2008.0000000;-0.5968053
2009.0000000;-1.8417617
2010.0000000;-0.3944465
2011.0000000;-1.8435216
2012.0000000;-1.6126196
2013.0000000;-0.2764935
2014.0000000;-0.3265360
2015.0000000;-1.0997021