1967.0000000;-0.7014170
1968.0000000;0.6928043
1969.0000000;-0.3814483
1970.0000000;-0.4278523
1971.0000000;-1.1877744
1972.0000000;-0.4917695
1973.0000000;-0.7798814
1974.0000000;-1.0166198
1975.0000000;-0.7759525
1976.0000000;-1.3776412
1977.0000000;0.1077406
1978.0000000;0.2404469
1979.0000000;-0.2853140
1980.0000000;0.3668756
1981.0000000;0.1487758
1982.0000000;-0.1052743
1983.0000000;-0.1602350
1984.0000000;1.3145695
1985.0000000;0.8858120
1986.0000000;-1.0703309
1987.0000000;0.2764813
1988.0000000;0.1558918
1989.0000000;-1.2393619
1990.0000000;-1.8600308
1991.0000000;-1.4673111
1992.0000000;-1.7325444
1993.0000000;-0.7281913
1994.0000000;-0.5722102
1995.0000000;0.6709504
1996.0000000;-0.0805355
1997.0000000;-0.8568791
1998.0000000;-1.6989262
1999.0000000;-0.7144084
2000.0000000;-0.9553809
2001.0000000;0.7620199
2002.0000000;-0.6986263
2003.0000000;-2.2161949
2004.0000000;-1.9296844
2005.0000000;-1.9069195
2006.0000000;-1.2007539
2007.0000000;-1.0739353
2008.0000000;-1.5699739
2009.0000000;-1.8178422
2010.0000000;-1.0660810
2011.0000000;-2.0226109
2012.0000000;-2.1659222
2013.0000000;-0.9368021
2014.0000000;-1.2148502
2015.0000000;-2.0359185