1967.0000000;-0.5536957
1968.0000000;-0.3081720
1969.0000000;-0.6049086
1970.0000000;-0.8011521
1971.0000000;-1.5089757
1972.0000000;-0.5443566
1973.0000000;-1.3093238
1974.0000000;-0.7800547
1975.0000000;-0.5296792
1976.0000000;-1.2803881
1977.0000000;0.2739361
1978.0000000;0.5257634
1979.0000000;0.0332786
1980.0000000;0.5592823
1981.0000000;0.4221756
1982.0000000;0.1695018
1983.0000000;-0.2225601
1984.0000000;0.4525694
1985.0000000;-0.3868655
1986.0000000;-1.2196769
1987.0000000;-0.2602549
1988.0000000;0.2168300
1989.0000000;-1.4515229
1990.0000000;-1.5304737
1991.0000000;-0.9789491
1992.0000000;-1.4007096
1993.0000000;-0.5915743
1994.0000000;-0.6523321
1995.0000000;0.5592052
1996.0000000;-0.3761073
1997.0000000;-0.9072595
1998.0000000;-1.6960069
1999.0000000;-1.0110555
2000.0000000;-1.2203057
2001.0000000;0.4829222
2002.0000000;-1.2982430
2003.0000000;-2.8580799
2004.0000000;-1.7185220
2005.0000000;-2.1312072
2006.0000000;-1.0048792
2007.0000000;-1.0847518
2008.0000000;-1.2927001
2009.0000000;-2.5455027
2010.0000000;-0.8445357
2011.0000000;-2.6028852
2012.0000000;-2.4405344
2013.0000000;-0.8597050
2014.0000000;-1.4089000
2015.0000000;-2.6014652