1967.0000000;-0.7383306
1968.0000000;-0.5687653
1969.0000000;-0.5076481
1970.0000000;-0.7886068
1971.0000000;-1.4591705
1972.0000000;-0.6017403
1973.0000000;-1.3961706
1974.0000000;-0.6777856
1975.0000000;-0.4386553
1976.0000000;-1.2787225
1977.0000000;-0.1237212
1978.0000000;0.6030625
1979.0000000;-0.0158106
1980.0000000;0.5937413
1981.0000000;0.3219488
1982.0000000;0.2015099
1983.0000000;-0.2075122
1984.0000000;0.5126786
1985.0000000;-0.2512659
1986.0000000;-1.1145883
1987.0000000;0.1175505
1988.0000000;0.1993936
1989.0000000;-1.2869923
1990.0000000;-1.2658330
1991.0000000;-1.0011508
1992.0000000;-0.9384962
1993.0000000;-0.4800442
1994.0000000;-0.2970206
1995.0000000;0.8703212
1996.0000000;-0.4407842
1997.0000000;-0.8572859
1998.0000000;-1.5244774
1999.0000000;-0.8736208
2000.0000000;-0.7456939
2001.0000000;0.2789157
2002.0000000;-1.2926357
2003.0000000;-3.0331368
2004.0000000;-1.4380965
2005.0000000;-2.3800654
2006.0000000;-1.3528647
2007.0000000;-1.4464318
2008.0000000;-1.3410932
2009.0000000;-2.7957177
2010.0000000;-0.8914716
2011.0000000;-2.8974371
2012.0000000;-2.3885264
2013.0000000;-0.8373744
2014.0000000;-1.2521753
2015.0000000;-2.6403618