1967.0000000;-1.2750499
1968.0000000;0.0597567
1969.0000000;-0.3358889
1970.0000000;-1.0562298
1971.0000000;-0.7206581
1972.0000000;-0.2356379
1973.0000000;-1.6125722
1974.0000000;-1.0082643
1975.0000000;-0.8011426
1976.0000000;-1.0214834
1977.0000000;0.7555627
1978.0000000;0.4904965
1979.0000000;0.0399588
1980.0000000;-0.0695388
1981.0000000;-0.7144257
1982.0000000;-0.2893821
1983.0000000;-0.1953783
1984.0000000;0.0007538
1985.0000000;-0.7550119
1986.0000000;-1.3491728
1987.0000000;-0.7561904
1988.0000000;-0.4859515
1989.0000000;-1.6337333
1990.0000000;-0.9670043
1991.0000000;-0.8713917
1992.0000000;-0.8875741
1993.0000000;-0.6639627
1994.0000000;-0.5142925
1995.0000000;-0.2340262
1996.0000000;0.0659616
1997.0000000;-0.5334662
1998.0000000;-1.5355738
1999.0000000;-1.0253018
2000.0000000;-1.3950272
2001.0000000;1.0648835
2002.0000000;-0.9018611
2003.0000000;-2.3797243
2004.0000000;-1.6654013
2005.0000000;-2.1532137
2006.0000000;-1.6024100
2007.0000000;-1.4902917
2008.0000000;-0.7563732
2009.0000000;-1.8621950
2010.0000000;-0.5667236
2011.0000000;-2.1468554
2012.0000000;-1.7982645
2013.0000000;-0.8594896
2014.0000000;-1.0767300
2015.0000000;-2.1819150