1967.0000000;-0.9319479
1968.0000000;0.1129277
1969.0000000;-0.5291859
1970.0000000;-0.9707845
1971.0000000;-0.9107158
1972.0000000;-0.2193538
1973.0000000;-1.7719697
1974.0000000;-1.0823815
1975.0000000;0.0005327
1976.0000000;-1.2800024
1977.0000000;0.6244184
1978.0000000;0.5451676
1979.0000000;-0.2747620
1980.0000000;0.3286929
1981.0000000;-0.0924487
1982.0000000;-0.1747558
1983.0000000;-0.3053304
1984.0000000;0.3381525
1985.0000000;-0.6919453
1986.0000000;-1.3888227
1987.0000000;-0.4110216
1988.0000000;-0.0574866
1989.0000000;-1.6785271
1990.0000000;-1.4680911
1991.0000000;-0.7227569
1992.0000000;-0.9526703
1993.0000000;-0.5644380
1994.0000000;-0.2152542
1995.0000000;0.3973055
1996.0000000;-0.2571056
1997.0000000;-0.6777719
1998.0000000;-1.6548810
1999.0000000;-0.8076860
2000.0000000;-1.1316590
2001.0000000;1.0163761
2002.0000000;-1.3698478
2003.0000000;-2.7750015
2004.0000000;-1.8931948
2005.0000000;-2.2350779
2006.0000000;-1.9978307
2007.0000000;-1.6429839
2008.0000000;-1.0193818
2009.0000000;-2.4203873
2010.0000000;-0.7443263
2011.0000000;-2.4988275
2012.0000000;-2.1293020
2013.0000000;-0.6221406
2014.0000000;-0.9917731
2015.0000000;-2.3595104