1967.0000000;-1.6509798
1968.0000000;0.0397881
1969.0000000;-0.6173375
1970.0000000;-1.3159764
1971.0000000;-0.9720848
1972.0000000;-0.2116012
1973.0000000;-1.4949074
1974.0000000;-1.4036050
1975.0000000;-1.0222969
1976.0000000;-1.2873194
1977.0000000;0.8749210
1978.0000000;0.5087261
1979.0000000;-0.2730213
1980.0000000;-0.1239297
1981.0000000;-1.0884318
1982.0000000;-0.5669037
1983.0000000;-0.2799439
1984.0000000;-0.0064236
1985.0000000;-1.1579725
1986.0000000;-1.3963816
1987.0000000;-0.9784290
1988.0000000;-0.6109678
1989.0000000;-1.6498369
1990.0000000;-1.2991557
1991.0000000;-1.0936809
1992.0000000;-0.8642929
1993.0000000;-0.9056047
1994.0000000;-0.5170085
1995.0000000;-0.3939179
1996.0000000;-0.3128702
1997.0000000;-0.7750595
1998.0000000;-1.7916636
1999.0000000;-1.3928132
2000.0000000;-1.6278906
2001.0000000;0.9237527
2002.0000000;-1.4799945
2003.0000000;-2.5638278
2004.0000000;-2.0477805
2005.0000000;-2.3983622
2006.0000000;-1.8508699
2007.0000000;-2.0783567
2008.0000000;-1.0634558
2009.0000000;-2.2074637
2010.0000000;-0.8471678
2011.0000000;-2.5097120
2012.0000000;-2.0597410
2013.0000000;-1.2065102
2014.0000000;-1.3722965
2015.0000000;-2.5284681