1967.0000000;-1.5070591
1968.0000000;0.0563142
1969.0000000;-0.7593948
1970.0000000;-1.0200298
1971.0000000;-1.2486016
1972.0000000;-0.1212336
1973.0000000;-1.4883854
1974.0000000;-1.2475665
1975.0000000;0.0922835
1976.0000000;-1.2478838
1977.0000000;0.2343796
1978.0000000;0.2504014
1979.0000000;-0.9813399
1980.0000000;-0.1617675
1981.0000000;-0.9190431
1982.0000000;-0.7451263
1983.0000000;-0.7705898
1984.0000000;0.7530682
1985.0000000;-0.7253394
1986.0000000;-1.4433485
1987.0000000;-0.8052564
1988.0000000;-0.2927322
1989.0000000;-1.6454078
1990.0000000;-1.0150428
1991.0000000;-1.3949112
1992.0000000;-1.0500654
1993.0000000;-0.9686521
1994.0000000;-0.8235407
1995.0000000;0.2952932
1996.0000000;-0.5894928
1997.0000000;-0.6493904
1998.0000000;-1.6605228
1999.0000000;-0.7407364
2000.0000000;-1.1170132
2001.0000000;0.3201384
2002.0000000;-0.6300018
2003.0000000;-2.6255598
2004.0000000;-2.2582121
2005.0000000;-2.2483706
2006.0000000;-1.9774528
2007.0000000;-1.5314515
2008.0000000;-1.1642411
2009.0000000;-2.1985383
2010.0000000;-0.8910179
2011.0000000;-2.3101447
2012.0000000;-2.0088341
2013.0000000;-0.7907951
2014.0000000;-0.9146991
2015.0000000;-1.9753709