1967.0000000;-1.5397686
1968.0000000;0.5983433
1969.0000000;-0.5141606
1970.0000000;-0.7487106
1971.0000000;-0.7222017
1972.0000000;0.1757014
1973.0000000;-1.2728411
1974.0000000;-1.0368899
1975.0000000;-0.3674951
1976.0000000;-1.3598531
1977.0000000;0.4147173
1978.0000000;0.2378944
1979.0000000;-0.8897194
1980.0000000;-0.5352563
1981.0000000;-0.7769345
1982.0000000;-0.9318255
1983.0000000;-0.2186806
1984.0000000;0.8304802
1985.0000000;-0.0002241
1986.0000000;-1.2594368
1987.0000000;-0.6139414
1988.0000000;-0.5181952
1989.0000000;-1.5422945
1990.0000000;-0.5013692
1991.0000000;-1.2241391
1992.0000000;-0.9739402
1993.0000000;-0.4324149
1994.0000000;-0.3424582
1995.0000000;0.2251581
1996.0000000;-0.2306930
1997.0000000;-0.3420141
1998.0000000;-1.5827440
1999.0000000;-0.3877140
2000.0000000;-0.8816985
2001.0000000;0.4586189
2002.0000000;-0.1333692
2003.0000000;-2.1768169
2004.0000000;-2.0526452
2005.0000000;-2.0778971
2006.0000000;-1.6715643
2007.0000000;-1.3808171
2008.0000000;-1.1428739
2009.0000000;-1.8684852
2010.0000000;-0.9564385
2011.0000000;-2.0351508
2012.0000000;-1.8057063
2013.0000000;-0.5544754
2014.0000000;-0.8058640
2015.0000000;-1.6348133