1967.0000000;-0.6551549
1968.0000000;-0.0588356
1969.0000000;-0.5183322
1970.0000000;-0.9234588
1971.0000000;-0.8153180
1972.0000000;-0.1897355
1973.0000000;-1.5197601
1974.0000000;-0.8669947
1975.0000000;-0.4364526
1976.0000000;-1.0247924
1977.0000000;0.5427575
1978.0000000;0.4586748
1979.0000000;-0.0975558
1980.0000000;0.2431443
1981.0000000;-0.0606330
1982.0000000;-0.2443205
1983.0000000;-0.1746605
1984.0000000;0.2540778
1985.0000000;-0.3361369
1986.0000000;-1.3934772
1987.0000000;-0.4828317
1988.0000000;-0.0908296
1989.0000000;-1.3513942
1990.0000000;-1.0292529
1991.0000000;-0.5321805
1992.0000000;-0.6757741
1993.0000000;-0.4983797
1994.0000000;-0.4390197
1995.0000000;0.4117960
1996.0000000;-0.0385408
1997.0000000;-0.6605605
1998.0000000;-1.6008626
1999.0000000;-0.8163586
2000.0000000;-1.2278260
2001.0000000;0.5453166
2002.0000000;-1.2910900
2003.0000000;-2.9775529
2004.0000000;-1.4926281
2005.0000000;-2.1648932
2006.0000000;-2.0154908
2007.0000000;-1.4620585
2008.0000000;-1.3410535
2009.0000000;-2.3882732
2010.0000000;-0.5862725
2011.0000000;-2.4514241
2012.0000000;-2.0191810
2013.0000000;-0.6486210
2014.0000000;-0.9515640
2015.0000000;-2.4715719