1967.0000000;-1.1770093
1968.0000000;0.4979864
1969.0000000;-0.3044914
1970.0000000;-0.6461120
1971.0000000;-0.9736767
1972.0000000;-0.1030623
1973.0000000;-1.0552258
1974.0000000;-1.0012306
1975.0000000;0.0445636
1976.0000000;-1.2600415
1977.0000000;0.4776330
1978.0000000;0.4824676
1979.0000000;-0.6659964
1980.0000000;0.0486182
1981.0000000;-0.3223712
1982.0000000;-0.5953377
1983.0000000;-0.3951411
1984.0000000;0.7538739
1985.0000000;-0.4138373
1986.0000000;-1.3129508
1987.0000000;-0.2708241
1988.0000000;-0.0047930
1989.0000000;-1.5562568
1990.0000000;-1.1023772
1991.0000000;-1.1862903
1992.0000000;-0.8360422
1993.0000000;-0.5928077
1994.0000000;-0.2614658
1995.0000000;0.3383196
1996.0000000;-0.2211620
1997.0000000;-0.2913874
1998.0000000;-1.6033729
1999.0000000;-0.6994268
2000.0000000;-0.8582575
2001.0000000;0.4811013
2002.0000000;-0.1665052
2003.0000000;-2.2817683
2004.0000000;-2.0762062
2005.0000000;-2.1184080
2006.0000000;-1.6827266
2007.0000000;-1.2199757
2008.0000000;-1.0532041
2009.0000000;-1.9313720
2010.0000000;-0.8019055
2011.0000000;-2.1038706
2012.0000000;-1.9367764
2013.0000000;-0.6609533
2014.0000000;-1.0040973
2015.0000000;-1.9381863