1967.0000000;-0.6695564
1968.0000000;-0.5699274
1969.0000000;-0.5315719
1970.0000000;-0.6726032
1971.0000000;-1.4699531
1972.0000000;-0.5206438
1973.0000000;-1.2803599
1974.0000000;-0.6245940
1975.0000000;-0.4904242
1976.0000000;-1.2265377
1977.0000000;-0.1829830
1978.0000000;0.5334256
1979.0000000;-0.1022365
1980.0000000;0.4520725
1981.0000000;0.2348463
1982.0000000;0.1284102
1983.0000000;-0.2466664
1984.0000000;0.5204941
1985.0000000;-0.1720258
1986.0000000;-1.2258208
1987.0000000;-0.0582704
1988.0000000;0.1401921
1989.0000000;-1.2892851
1990.0000000;-1.1740303
1991.0000000;-1.0037593
1992.0000000;-0.9260747
1993.0000000;-0.4979631
1994.0000000;-0.3436904
1995.0000000;0.8202260
1996.0000000;-0.3592628
1997.0000000;-0.8211364
1998.0000000;-1.5344044
1999.0000000;-0.9244753
2000.0000000;-0.7618970
2001.0000000;0.2279653
2002.0000000;-1.0970896
2003.0000000;-2.8088427
2004.0000000;-1.4194705
2005.0000000;-2.1840127
2006.0000000;-1.1743648
2007.0000000;-1.1001604
2008.0000000;-1.1974227
2009.0000000;-2.5142283
2010.0000000;-0.5919631
2011.0000000;-2.4847217
2012.0000000;-2.1310430
2013.0000000;-0.6263072
2014.0000000;-0.8858117
2015.0000000;-2.1939209