1967.0000000;-1.1693242
1968.0000000;-0.1731190
1969.0000000;-0.0862170
1970.0000000;-0.9534271
1971.0000000;-0.8755438
1972.0000000;-0.1744255
1973.0000000;-1.1478688
1974.0000000;-1.0618058
1975.0000000;-0.0841348
1976.0000000;-0.6605998
1977.0000000;0.4335694
1978.0000000;0.4363681
1979.0000000;-0.6545917
1980.0000000;0.2715396
1981.0000000;-0.1190058
1982.0000000;-0.6536971
1983.0000000;-0.4243947
1984.0000000;0.8013009
1985.0000000;0.3489187
1986.0000000;-1.2763629
1987.0000000;-0.6860977
1988.0000000;-0.3230198
1989.0000000;-1.4950409
1990.0000000;-1.6172547
1991.0000000;-1.6373633
1992.0000000;-1.6507947
1993.0000000;-0.8207749
1994.0000000;-0.4853062
1995.0000000;0.4538332
1996.0000000;-0.2928132
1997.0000000;-0.9088988
1998.0000000;-1.7724931
1999.0000000;-0.7732046
2000.0000000;-1.1499245
2001.0000000;0.7190838
2002.0000000;-0.1655528
2003.0000000;-2.3345909
2004.0000000;-1.8689165
2005.0000000;-1.7624918
2006.0000000;-1.4313579
2007.0000000;-1.0978628
2008.0000000;-1.0855180
2009.0000000;-1.5651506
2010.0000000;-0.9747947
2011.0000000;-1.7252858
2012.0000000;-1.9536555
2013.0000000;-0.9708932
2014.0000000;-1.2137096
2015.0000000;-1.5486668