1967.0000000;-0.7268463
1968.0000000;-0.4390015
1969.0000000;-0.6029987
1970.0000000;-0.6766335
1971.0000000;-1.4361408
1972.0000000;-0.5415796
1973.0000000;-1.2603506
1974.0000000;-0.7062619
1975.0000000;-0.5178736
1976.0000000;-1.3440826
1977.0000000;-0.1877126
1978.0000000;0.5209218
1979.0000000;-0.1974488
1980.0000000;0.4083078
1981.0000000;0.1796567
1982.0000000;0.0897638
1983.0000000;-0.2613985
1984.0000000;0.6409096
1985.0000000;-0.0195674
1986.0000000;-1.2381949
1987.0000000;-0.1379321
1988.0000000;0.0669291
1989.0000000;-1.2934513
1990.0000000;-1.2343906
1991.0000000;-1.2844285
1992.0000000;-1.0936961
1993.0000000;-0.5760676
1994.0000000;-0.4356869
1995.0000000;0.8044661
1996.0000000;-0.3220415
1997.0000000;-0.8523366
1998.0000000;-1.6224139
1999.0000000;-0.8927317
2000.0000000;-0.7947834
2001.0000000;0.2842738
2002.0000000;-1.0843561
2003.0000000;-2.7350757
2004.0000000;-1.7050428
2005.0000000;-1.9930387
2006.0000000;-1.3736709
2007.0000000;-1.0698328
2008.0000000;-1.3170557
2009.0000000;-2.4508281
2010.0000000;-0.6620281
2011.0000000;-2.2899075
2012.0000000;-2.1869633
2013.0000000;-0.6168084
2014.0000000;-0.8490984
2015.0000000;-2.0919833