1967.0000000;-1.1670331
1968.0000000;0.9797615
1969.0000000;-0.3116664
1970.0000000;-0.4518344
1971.0000000;-0.9537583
1972.0000000;0.1354143
1973.0000000;-0.8788841
1974.0000000;-0.7808558
1975.0000000;0.0595283
1976.0000000;-1.1304401
1977.0000000;0.3534090
1978.0000000;0.3241392
1979.0000000;-0.7034595
1980.0000000;-0.1936414
1981.0000000;-0.2902547
1982.0000000;-0.6263238
1983.0000000;-0.2317298
1984.0000000;0.9610366
1985.0000000;-0.1878760
1986.0000000;-1.2793081
1987.0000000;-0.3273442
1988.0000000;-0.0497791
1989.0000000;-1.5344700
1990.0000000;-0.7506945
1991.0000000;-1.1659281
1992.0000000;-0.8603694
1993.0000000;-0.5702469
1994.0000000;-0.2486337
1995.0000000;0.4318813
1996.0000000;-0.0449621
1997.0000000;-0.1802481
1998.0000000;-1.5060945
1999.0000000;-0.4603080
2000.0000000;-0.8501636
2001.0000000;0.4617754
2002.0000000;0.0664195
2003.0000000;-2.2413263
2004.0000000;-2.0918493
2005.0000000;-2.1219571
2006.0000000;-1.6334796
2007.0000000;-1.0364960
2008.0000000;-0.9656286
2009.0000000;-1.8367391
2010.0000000;-0.6676772
2011.0000000;-1.9859689
2012.0000000;-1.7848309
2013.0000000;-0.4639735
2014.0000000;-0.7095672
2015.0000000;-1.5351055