1967.0000000;-1.5726043
1968.0000000;0.9105048
1969.0000000;-0.4290979
1970.0000000;-0.8912864
1971.0000000;-0.4045209
1972.0000000;0.0027241
1973.0000000;-0.5620129
1974.0000000;-1.2379289
1975.0000000;-0.7044020
1976.0000000;-1.2877897
1977.0000000;0.7704433
1978.0000000;0.2473485
1979.0000000;-0.7725371
1980.0000000;-0.5164077
1981.0000000;-1.1160581
1982.0000000;-1.0504051
1983.0000000;-0.1206751
1984.0000000;0.3578327
1985.0000000;-1.0149843
1986.0000000;-1.4391679
1987.0000000;-0.5530282
1988.0000000;-0.7473612
1989.0000000;-1.6434486
1990.0000000;-0.5318400
1991.0000000;-1.1781926
1992.0000000;-0.5694951
1993.0000000;-0.7926807
1994.0000000;-0.4486372
1995.0000000;0.0597593
1996.0000000;-0.2905196
1997.0000000;-0.2371049
1998.0000000;-1.6737944
1999.0000000;-1.1478658
2000.0000000;-1.2249215
2001.0000000;0.4356132
2002.0000000;-0.6003776
2003.0000000;-1.9626853
2004.0000000;-1.9859307
2005.0000000;-2.2150328
2006.0000000;-1.6502734
2007.0000000;-1.6351311
2008.0000000;-0.8394825
2009.0000000;-1.7169102
2010.0000000;-0.8707273
2011.0000000;-2.1164253
2012.0000000;-1.8270555
2013.0000000;-0.8916274
2014.0000000;-0.9419088
2015.0000000;-1.5298618