1967.0000000;-1.6368949
1968.0000000;0.8632742
1969.0000000;-0.3832067
1970.0000000;-0.8690246
1971.0000000;-0.2205460
1972.0000000;0.1563376
1973.0000000;-0.7020077
1974.0000000;-1.2448921
1975.0000000;-0.7030303
1976.0000000;-1.2196248
1977.0000000;0.5558064
1978.0000000;0.1054009
1979.0000000;-0.8362789
1980.0000000;-0.5981520
1981.0000000;-1.1410153
1982.0000000;-1.2843474
1983.0000000;-0.1019037
1984.0000000;0.4679528
1985.0000000;-0.6977649
1986.0000000;-1.3467643
1987.0000000;-0.4008303
1988.0000000;-0.8014576
1989.0000000;-1.5746776
1990.0000000;-0.5577639
1991.0000000;-1.1645260
1992.0000000;-0.5471498
1993.0000000;-0.6273981
1994.0000000;-0.4889623
1995.0000000;0.0929949
1996.0000000;-0.4571198
1997.0000000;-0.3502159
1998.0000000;-1.6145663
1999.0000000;-1.0946283
2000.0000000;-1.1369100
2001.0000000;0.2935932
2002.0000000;-0.4309058
2003.0000000;-1.9450465
2004.0000000;-1.8644903
2005.0000000;-1.9830968
2006.0000000;-1.5787170
2007.0000000;-1.5821273
2008.0000000;-0.6435246
2009.0000000;-1.5671773
2010.0000000;-0.7525162
2011.0000000;-1.8897032
2012.0000000;-1.6393094
2013.0000000;-0.6922870
2014.0000000;-0.8300384
2015.0000000;-0.9671978