1967.0000000;-0.3150702
1968.0000000;0.1679608
1969.0000000;-1.0913587
1970.0000000;-0.5902383
1971.0000000;-1.4011606
1972.0000000;-0.7916371
1973.0000000;-1.2587146
1974.0000000;-0.9947091
1975.0000000;-0.4061998
1976.0000000;-1.5150521
1977.0000000;0.3215763
1978.0000000;0.4327958
1979.0000000;-0.0331966
1980.0000000;0.7916296
1981.0000000;0.2947699
1982.0000000;-0.1354786
1983.0000000;-0.1064084
1984.0000000;0.9284974
1985.0000000;0.5915242
1986.0000000;-1.4870330
1987.0000000;0.4014358
1988.0000000;0.2957747
1989.0000000;-1.1757948
1990.0000000;-1.5485032
1991.0000000;-1.2942454
1992.0000000;-0.9363268
1993.0000000;-0.6084082
1994.0000000;-0.5942937
1995.0000000;0.9971636
1996.0000000;-0.2014900
1997.0000000;-0.7728468
1998.0000000;-1.7405956
1999.0000000;-0.6163904
2000.0000000;-1.3323157
2001.0000000;0.5981562
2002.0000000;-1.0367407
2003.0000000;-3.0482621
2004.0000000;-1.7949573
2005.0000000;-2.2206776
2006.0000000;-1.2290792
2007.0000000;-1.0581666
2008.0000000;-1.5356588
2009.0000000;-3.0265019
2010.0000000;-0.9084548
2011.0000000;-2.9441903
2012.0000000;-2.7046227
2013.0000000;-1.3147779
2014.0000000;-1.0866740
2015.0000000;-2.6440759