1967.0000000;-0.9545677
1968.0000000;0.1290256
1969.0000000;-0.2430736
1970.0000000;-0.9413557
1971.0000000;-1.0230221
1972.0000000;-0.2030682
1973.0000000;-0.6803868
1974.0000000;-0.8183501
1975.0000000;0.0882005
1976.0000000;-0.2353827
1977.0000000;0.5346887
1978.0000000;0.5578738
1979.0000000;-0.7176985
1980.0000000;0.2119790
1981.0000000;0.1810508
1982.0000000;-0.3598469
1983.0000000;-0.5449698
1984.0000000;0.6348029
1985.0000000;-0.1310481
1986.0000000;-1.3374087
1987.0000000;-0.9630375
1988.0000000;-0.6565443
1989.0000000;-1.5991778
1990.0000000;-1.6260365
1991.0000000;-1.7121367
1992.0000000;-1.4769833
1993.0000000;-0.7040460
1994.0000000;-0.4862825
1995.0000000;0.2840714
1996.0000000;-1.1893203
1997.0000000;-1.1733465
1998.0000000;-2.0384130
1999.0000000;-0.8504125
2000.0000000;-1.2803869
2001.0000000;0.7382591
2002.0000000;0.0390049
2003.0000000;-2.3748302
2004.0000000;-1.8732278
2005.0000000;-2.0561624
2006.0000000;-1.5285335
2007.0000000;-1.3718884
2008.0000000;-0.8458799
2009.0000000;-1.7444839
2010.0000000;-0.7756354
2011.0000000;-1.6829116
2012.0000000;-1.7983906
2013.0000000;-1.0520138
2014.0000000;-0.7331312
2015.0000000;-0.8401519