1967.0000000;-1.3591094
1968.0000000;0.1382574
1969.0000000;-0.3840997
1970.0000000;-1.0794342
1971.0000000;-0.6569126
1972.0000000;-0.2239301
1973.0000000;-1.4857680
1974.0000000;-1.0794134
1975.0000000;-0.8257491
1976.0000000;-1.0405381
1977.0000000;0.8148184
1978.0000000;0.5452089
1979.0000000;0.0645094
1980.0000000;-0.0642605
1981.0000000;-0.8170096
1982.0000000;-0.3692909
1983.0000000;-0.1440129
1984.0000000;0.0541066
1985.0000000;-0.8432418
1986.0000000;-1.3579501
1987.0000000;-0.7870656
1988.0000000;-0.4372330
1989.0000000;-1.6498601
1990.0000000;-1.0138073
1991.0000000;-0.8993374
1992.0000000;-0.8335240
1993.0000000;-0.7010265
1994.0000000;-0.4808889
1995.0000000;-0.1667602
1996.0000000;0.0244226
1997.0000000;-0.4058940
1998.0000000;-1.5710267
1999.0000000;-1.0409578
2000.0000000;-1.4739479
2001.0000000;1.1019671
2002.0000000;-1.1425076
2003.0000000;-2.3648777
2004.0000000;-1.8465998
2005.0000000;-2.3090358
2006.0000000;-1.7053181
2007.0000000;-1.7895720
2008.0000000;-0.8579130
2009.0000000;-2.0709834
2010.0000000;-0.6982130
2011.0000000;-2.3661532
2012.0000000;-1.9514798
2013.0000000;-1.0166296
2014.0000000;-1.2168710
2015.0000000;-2.4252110