1967.0000000;-1.3645812
1968.0000000;0.6044604
1969.0000000;-0.4478666
1970.0000000;-0.7242280
1971.0000000;-0.8883094
1972.0000000;0.0440532
1973.0000000;-1.1580749
1974.0000000;-0.9003775
1975.0000000;0.2770645
1976.0000000;-1.2242956
1977.0000000;0.2812352
1978.0000000;0.3716113
1979.0000000;-0.7499238
1980.0000000;-0.1214097
1981.0000000;-0.5804315
1982.0000000;-0.8696017
1983.0000000;-0.3463252
1984.0000000;1.0421067
1985.0000000;-0.0240510
1986.0000000;-1.3625383
1987.0000000;-0.2103972
1988.0000000;0.2428481
1989.0000000;-1.5750918
1990.0000000;-1.0652821
1991.0000000;-1.2735641
1992.0000000;-0.8140039
1993.0000000;-0.5992286
1994.0000000;-0.2813554
1995.0000000;0.5612407
1996.0000000;-0.1715735
1997.0000000;-0.3274729
1998.0000000;-1.5738618
1999.0000000;-0.4163945
2000.0000000;-0.9147762
2001.0000000;0.6251303
2002.0000000;0.0649231
2003.0000000;-2.3471122
2004.0000000;-2.1345494
2005.0000000;-2.1500506
2006.0000000;-1.7553374
2007.0000000;-1.1533878
2008.0000000;-1.0540817
2009.0000000;-1.9912701
2010.0000000;-0.8331211
2011.0000000;-2.1345298
2012.0000000;-1.9773690
2013.0000000;-0.5080147
2014.0000000;-0.9001236
2015.0000000;-1.8873880