1967.0000000;-1.1586978
1968.0000000;0.2625305
1969.0000000;-0.3214680
1970.0000000;-0.7665141
1971.0000000;-0.9205768
1972.0000000;-0.0459781
1973.0000000;-1.1685387
1974.0000000;-1.0906858
1975.0000000;0.2150616
1976.0000000;-0.9213910
1977.0000000;0.5609456
1978.0000000;0.5783099
1979.0000000;-0.5239772
1980.0000000;0.2750612
1981.0000000;-0.1838385
1982.0000000;-0.2350612
1983.0000000;-0.5254171
1984.0000000;0.6176229
1985.0000000;-0.6183370
1986.0000000;-1.3119340
1987.0000000;-0.5327716
1988.0000000;0.0422956
1989.0000000;-1.6244256
1990.0000000;-1.3655772
1991.0000000;-1.0381656
1992.0000000;-0.7071800
1993.0000000;-0.7354344
1994.0000000;-0.3826496
1995.0000000;0.4567491
1996.0000000;-0.4134144
1997.0000000;-0.6060560
1998.0000000;-1.6233584
1999.0000000;-0.6484068
2000.0000000;-0.9820156
2001.0000000;0.6039369
2002.0000000;-0.6614762
2003.0000000;-2.6639445
2004.0000000;-2.1936159
2005.0000000;-2.2442045
2006.0000000;-1.9558427
2007.0000000;-1.4784584
2008.0000000;-0.9733264
2009.0000000;-2.1159775
2010.0000000;-0.7576274
2011.0000000;-2.1767590
2012.0000000;-1.9053632
2013.0000000;-0.5154909
2014.0000000;-0.6546102
2015.0000000;-1.7000182