1967.0000000;-0.5185776
1968.0000000;1.2300005
1969.0000000;-0.9160829
1970.0000000;-0.3930387
1971.0000000;-0.8954943
1972.0000000;-0.7577837
1973.0000000;-0.6782892
1974.0000000;-0.8824571
1975.0000000;-0.5613463
1976.0000000;-1.2859967
1977.0000000;0.2214496
1978.0000000;0.2180641
1979.0000000;0.4197965
1980.0000000;0.3073847
1981.0000000;-0.2014455
1982.0000000;-0.1316633
1983.0000000;-0.0332870
1984.0000000;1.7390931
1985.0000000;1.5260525
1986.0000000;-1.3137435
1987.0000000;0.7228504
1988.0000000;0.0154079
1989.0000000;-0.9676294
1990.0000000;-1.5405927
1991.0000000;-1.4294355
1992.0000000;-1.2352904
1993.0000000;-0.6746303
1994.0000000;-0.1261793
1995.0000000;0.8152789
1996.0000000;0.1322522
1997.0000000;-0.7826733
1998.0000000;-1.8571790
1999.0000000;-0.3439717
2000.0000000;-0.7621489
2001.0000000;0.7985636
2002.0000000;-0.1706617
2003.0000000;-2.0259552
2004.0000000;-1.8438426
2005.0000000;-1.6938391
2006.0000000;-1.1058537
2007.0000000;-0.5480094
2008.0000000;-1.4338844
2009.0000000;-2.2771385
2010.0000000;-0.9114287
2011.0000000;-1.8819983
2012.0000000;-2.0495234
2013.0000000;-0.7922915
2014.0000000;-0.9983020
2015.0000000;-1.2241430