1967.0000000;-1.4570078
1968.0000000;0.3681370
1969.0000000;-0.9119551
1970.0000000;-0.6622083
1971.0000000;-1.4961104
1972.0000000;-0.4859784
1973.0000000;-0.8091626
1974.0000000;-0.8164014
1975.0000000;-0.4829339
1976.0000000;-1.1770817
1977.0000000;0.0252706
1978.0000000;0.2243394
1979.0000000;-0.0516222
1980.0000000;-0.0889259
1981.0000000;0.0490768
1982.0000000;0.0611369
1983.0000000;-0.1167176
1984.0000000;1.1829586
1985.0000000;0.7585166
1986.0000000;-1.2789366
1987.0000000;-0.1596377
1988.0000000;0.5400788
1989.0000000;-1.4297423
1990.0000000;-1.7615340
1991.0000000;-1.8003843
1992.0000000;-1.4574213
1993.0000000;-0.6621319
1994.0000000;-0.3877434
1995.0000000;0.7331523
1996.0000000;-0.1344189
1997.0000000;-0.7780246
1998.0000000;-1.7259450
1999.0000000;-0.7599996
2000.0000000;-1.0837111
2001.0000000;1.0489588
2002.0000000;-0.3951758
2003.0000000;-2.3181801
2004.0000000;-1.9512012
2005.0000000;-2.0750470
2006.0000000;-1.4582191
2007.0000000;-0.8188961
2008.0000000;-1.5216541
2009.0000000;-2.1070704
2010.0000000;-1.0838510
2011.0000000;-1.9436369
2012.0000000;-2.1210158
2013.0000000;-0.6959366
2014.0000000;-0.8170996
2015.0000000;-1.6138715