1967.0000000;-0.8491559
1968.0000000;0.6082048
1969.0000000;-0.3377649
1970.0000000;-0.1521282
1971.0000000;-1.1402352
1972.0000000;-0.3519721
1973.0000000;-0.6440984
1974.0000000;-0.5835201
1975.0000000;-0.5737636
1976.0000000;-1.2159657
1977.0000000;-0.3335225
1978.0000000;0.1372635
1979.0000000;-0.1587616
1980.0000000;0.0674786
1981.0000000;-0.1021860
1982.0000000;-0.1901629
1983.0000000;-0.0665744
1984.0000000;1.5042648
1985.0000000;0.9045367
1986.0000000;-1.1166561
1987.0000000;0.0353208
1988.0000000;0.5977385
1989.0000000;-1.0870097
1990.0000000;-1.2066417
1991.0000000;-1.5291586
1992.0000000;-1.1224239
1993.0000000;-0.7034087
1994.0000000;-0.3379130
1995.0000000;0.7664204
1996.0000000;0.0470665
1997.0000000;-0.6529348
1998.0000000;-1.5028404
1999.0000000;-0.6395621
2000.0000000;-0.8526742
2001.0000000;0.7827368
2002.0000000;-0.2013891
2003.0000000;-2.1713750
2004.0000000;-1.8213420
2005.0000000;-1.8364313
2006.0000000;-1.1845336
2007.0000000;-0.6453979
2008.0000000;-1.3016313
2009.0000000;-1.8530846
2010.0000000;-0.4771013
2011.0000000;-1.8339078
2012.0000000;-2.0517964
2013.0000000;-0.5909890
2014.0000000;-0.6953543
2015.0000000;-1.3537698