1967.0000000;-0.6877110
1968.0000000;0.2975057
1969.0000000;-0.1267226
1970.0000000;-0.4751215
1971.0000000;-0.5493703
1972.0000000;-0.0784051
1973.0000000;-1.0610714
1974.0000000;-0.8418101
1975.0000000;0.0219426
1976.0000000;-0.9307483
1977.0000000;0.3835719
1978.0000000;0.5048856
1979.0000000;-0.2947728
1980.0000000;0.2867505
1981.0000000;-0.0899178
1982.0000000;-0.2344536
1983.0000000;-0.3320442
1984.0000000;0.4242188
1985.0000000;-0.2934154
1986.0000000;-1.1756892
1987.0000000;-0.3007534
1988.0000000;0.0561216
1989.0000000;-1.4127162
1990.0000000;-0.9903017
1991.0000000;-0.8136901
1992.0000000;-0.6360030
1993.0000000;-0.5720948
1994.0000000;-0.2995535
1995.0000000;0.3466883
1996.0000000;0.0219275
1997.0000000;-0.3601594
1998.0000000;-1.2950058
1999.0000000;-0.5128671
2000.0000000;-0.7130542
2001.0000000;0.6052305
2002.0000000;-0.1269828
2003.0000000;-2.3349509
2004.0000000;-1.9086789
2005.0000000;-1.9728954
2006.0000000;-1.5529454
2007.0000000;-0.9555280
2008.0000000;-0.5542527
2009.0000000;-1.9451270
2010.0000000;-0.5645376
2011.0000000;-1.9838729
2012.0000000;-1.6657197
2013.0000000;-0.4821039
2014.0000000;-0.8485253
2015.0000000;-1.8095659