1967.0000000;-0.9471226
1968.0000000;0.1906035
1969.0000000;-0.5510185
1970.0000000;-0.9067429
1971.0000000;-0.9260485
1972.0000000;-0.0915971
1973.0000000;-1.6432545
1974.0000000;-0.9993672
1975.0000000;-0.0051524
1976.0000000;-1.1578517
1977.0000000;0.6062141
1978.0000000;0.4934291
1979.0000000;-0.3582019
1980.0000000;0.2322631
1981.0000000;-0.1690094
1982.0000000;-0.2241221
1983.0000000;-0.2871497
1984.0000000;0.3466270
1985.0000000;-0.6512312
1986.0000000;-1.3636932
1987.0000000;-0.5288525
1988.0000000;-0.1567671
1989.0000000;-1.5921443
1990.0000000;-1.2150668
1991.0000000;-0.7506977
1992.0000000;-0.9561796
1993.0000000;-0.5675354
1994.0000000;-0.2649924
1995.0000000;0.3503762
1996.0000000;-0.2875099
1997.0000000;-0.7012609
1998.0000000;-1.6524647
1999.0000000;-0.8283387
2000.0000000;-1.2113384
2001.0000000;0.9459043
2002.0000000;-1.2736292
2003.0000000;-2.7752464
2004.0000000;-1.9768856
2005.0000000;-2.2024508
2006.0000000;-1.9463696
2007.0000000;-1.3107336
2008.0000000;-0.9009972
2009.0000000;-2.2411366
2010.0000000;-0.6084197
2011.0000000;-2.1988854
2012.0000000;-1.7651260
2013.0000000;-0.4347393
2014.0000000;-0.6645358
2015.0000000;-1.7563531