1967.0000000;-0.9336601
1968.0000000;1.0791196
1969.0000000;-1.4338427
1970.0000000;-0.6502489
1971.0000000;-1.3102450
1972.0000000;-0.9285551
1973.0000000;-0.7737928
1974.0000000;-0.9810567
1975.0000000;-0.9615158
1976.0000000;-1.7380304
1977.0000000;0.5253743
1978.0000000;0.0569240
1979.0000000;0.1272353
1980.0000000;0.2100893
1981.0000000;-0.2055325
1982.0000000;-0.2262755
1983.0000000;-0.0691780
1984.0000000;1.6427221
1985.0000000;1.3461568
1986.0000000;-1.5261827
1987.0000000;0.1201093
1988.0000000;-0.3681974
1989.0000000;-1.4335886
1990.0000000;-1.7287219
1991.0000000;-1.6666729
1992.0000000;-1.5315850
1993.0000000;-0.6683091
1994.0000000;-0.3516929
1995.0000000;0.8580927
1996.0000000;0.0553527
1997.0000000;-0.8668667
1998.0000000;-1.9699357
1999.0000000;-0.4568862
2000.0000000;-1.0255581
2001.0000000;1.1636529
2002.0000000;-0.5458202
2003.0000000;-2.3880401
2004.0000000;-2.0738363
2005.0000000;-2.0700827
2006.0000000;-1.2627667
2007.0000000;-0.8351038
2008.0000000;-1.5713743
2009.0000000;-2.7400184
2010.0000000;-1.2505207
2011.0000000;-2.2285752
2012.0000000;-2.3439705
2013.0000000;-0.9787006
2014.0000000;-1.0426939
2015.0000000;-1.8136789