1967.0000000;-0.7639163
1968.0000000;0.2531942
1969.0000000;-0.6407566
1970.0000000;-0.6603539
1971.0000000;-1.3972372
1972.0000000;-0.5102813
1973.0000000;-1.0185771
1974.0000000;-1.0337676
1975.0000000;-0.7842079
1976.0000000;-1.3100626
1977.0000000;0.1944936
1978.0000000;0.2649878
1979.0000000;-0.3521599
1980.0000000;0.2094436
1981.0000000;0.2189038
1982.0000000;-0.1126407
1983.0000000;-0.2615485
1984.0000000;1.0117390
1985.0000000;0.3737761
1986.0000000;-1.1608338
1987.0000000;-0.3872921
1988.0000000;0.1414083
1989.0000000;-1.3715749
1990.0000000;-1.5707319
1991.0000000;-1.3125517
1992.0000000;-1.7144517
1993.0000000;-0.7316713
1994.0000000;-0.5921391
1995.0000000;0.5860224
1996.0000000;-0.1130593
1997.0000000;-0.8734751
1998.0000000;-1.6005957
1999.0000000;-0.8701843
2000.0000000;-1.0553803
2001.0000000;0.7986431
2002.0000000;-0.6676288
2003.0000000;-2.2434669
2004.0000000;-1.8273381
2005.0000000;-1.8592722
2006.0000000;-1.1388671
2007.0000000;-1.0140841
2008.0000000;-1.4002557
2009.0000000;-1.9281112
2010.0000000;-0.9948723
2011.0000000;-2.0877681
2012.0000000;-2.1064219
2013.0000000;-0.7880242
2014.0000000;-1.2528749
2015.0000000;-2.0936108