1967.0000000;-1.1984252
1968.0000000;0.2142266
1969.0000000;-0.3762566
1970.0000000;-0.9041399
1971.0000000;-0.9641009
1972.0000000;0.0346933
1973.0000000;-1.2607129
1974.0000000;-0.9125267
1975.0000000;0.2068285
1976.0000000;-1.0489976
1977.0000000;0.2519538
1978.0000000;0.0437386
1979.0000000;-0.7348177
1980.0000000;-0.2814975
1981.0000000;-0.8540202
1982.0000000;-0.5903931
1983.0000000;-0.3655828
1984.0000000;0.6631882
1985.0000000;-0.5221394
1986.0000000;-1.3685596
1987.0000000;-0.5365745
1988.0000000;-0.3705276
1989.0000000;-1.5730271
1990.0000000;-0.4753623
1991.0000000;-0.9689389
1992.0000000;-0.8804953
1993.0000000;-0.6083605
1994.0000000;-0.4342032
1995.0000000;0.4273738
1996.0000000;-0.0543590
1997.0000000;-0.1668674
1998.0000000;-1.4236778
1999.0000000;-0.4876530
2000.0000000;-0.9974508
2001.0000000;0.4669985
2002.0000000;-0.1422234
2003.0000000;-2.3791623
2004.0000000;-2.1334002
2005.0000000;-2.1359143
2006.0000000;-1.7159110
2007.0000000;-0.9107689
2008.0000000;-0.7769715
2009.0000000;-2.0149870
2010.0000000;-0.5390551
2011.0000000;-2.2098169
2012.0000000;-1.9770365
2013.0000000;-0.6819571
2014.0000000;-0.8553928
2015.0000000;-2.0238223