1967.0000000;-0.9043074
1968.0000000;-0.0127050
1969.0000000;-0.5802776
1970.0000000;-0.3548502
1971.0000000;-1.2168961
1972.0000000;-0.3113148
1973.0000000;-0.6196289
1974.0000000;-1.1964014
1975.0000000;0.0867030
1976.0000000;-1.4673998
1977.0000000;0.4921844
1978.0000000;0.4346429
1979.0000000;-0.6340370
1980.0000000;0.3455567
1981.0000000;-0.3190565
1982.0000000;-0.4104549
1983.0000000;-0.3829654
1984.0000000;0.6293816
1985.0000000;-0.4032686
1986.0000000;-1.6442790
1987.0000000;-0.7736993
1988.0000000;-0.5807107
1989.0000000;-1.4304006
1990.0000000;-1.7137752
1991.0000000;-1.2694480
1992.0000000;-1.8347532
1993.0000000;-0.8384506
1994.0000000;-0.7499520
1995.0000000;0.3763606
1996.0000000;-1.4961147
1997.0000000;-2.0880110
1998.0000000;-2.3058167
1999.0000000;-1.5011563
2000.0000000;-2.1499715
2001.0000000;-0.6394431
2002.0000000;-2.4525399
2003.0000000;-3.6272743
2004.0000000;-2.4393210
2005.0000000;-2.7313554
2006.0000000;-2.2782340
2007.0000000;-1.9044238
2008.0000000;-1.8160763
2009.0000000;-2.7668033
2010.0000000;-0.9364881
2011.0000000;-2.5991840
2012.0000000;-2.3318067
2013.0000000;-0.6524960
2014.0000000;-0.6190599
2015.0000000;-1.9662948