1943     0.15 
1944    -1.76 
1945    -0.88 
1946     0.19 
1947     1.34 
1948     0.19 
1949    -1.68 
1950    -0.03 
1951     1.11 
1952    -0.35 
1953    -2.03 
1954    -0.37 
1955    -0.31 
1956    -0.84 
1957     0.84 
1958    -0.10 
1959     0.02 
1960     1.42 
1961     0.08 
1962    -0.49 
1963    -0.35 
1964    -1.06 
1965    -1.18 
1966     1.22 
1967    -0.04 
1968    -0.74 
1969    -0.21 
1970     0.17 
1971    -0.65 
1972     0.58 
1973    -0.42 
1974     1.25 
1975     0.24 
1976    -1.51 
1977     1.60 
1978     1.10 
1979     1.45 
1980     0.42 
1981    -0.18 
1982     0.75 
1983    -0.34 
1984     0.10 
1985    -0.28 
1986     1.08 
1987    -0.34 
1988     0.90 
1989    -0.48 
1990     1.10 
1991    -0.21 
1992    -2.10 
1993    -1.31 
1994     1.93 
1995     1.56 
1996    -0.08 
1997    -0.64 
1998    -0.32 
1999     0.24 
2000    -0.87 
2001     1.84 
2002    -0.62 
2003    -0.16 
2004    -0.72 
2005    -1.66 
2006    -0.78 
2007     0.51 
2008     0.08 
2009    -0.40 
2010    -0.01 
2011    -1.26 
2012    -1.22 
2013     0.88 
2014     2.66 
2015    -0.26 
2016     1.73 
2017    -0.52 
2018     1.01