1967.0000000;-1.2014822
1968.0000000;0.5141190
1969.0000000;-0.2623795
1970.0000000;-0.6449353
1971.0000000;-0.8625439
1972.0000000;0.2871766
1973.0000000;-0.9215957
1974.0000000;-0.6609695
1975.0000000;0.2340053
1976.0000000;-0.7968002
1977.0000000;0.2794915
1978.0000000;0.0830903
1979.0000000;-0.6003022
1980.0000000;-0.2970619
1981.0000000;-0.3926044
1982.0000000;-0.7051630
1983.0000000;-0.3914034
1984.0000000;0.7258911
1985.0000000;-0.3248020
1986.0000000;-1.2639213
1987.0000000;-0.2665032
1988.0000000;-0.2630170
1989.0000000;-1.4205434
1990.0000000;-0.5237973
1991.0000000;-1.0504556
1992.0000000;-0.6757617
1993.0000000;-0.3994311
1994.0000000;-0.3666266
1995.0000000;0.4368033
1996.0000000;-0.0733647
1997.0000000;-0.2325717
1998.0000000;-1.3559066
1999.0000000;-0.4740840
2000.0000000;-0.8424239
2001.0000000;0.6489167
2002.0000000;0.2603953
2003.0000000;-2.1928916
2004.0000000;-1.9583678
2005.0000000;-1.9501686
2006.0000000;-1.5714828
2007.0000000;-0.4953731
2008.0000000;-0.5201180
2009.0000000;-1.6572936
2010.0000000;-0.3178204
2011.0000000;-1.7083797
2012.0000000;-1.5659887
2013.0000000;-0.2261115
2014.0000000;-0.3741153
2015.0000000;-1.0495192