1901 0.1721 1902 0.9709 1903 0.5537 1904 0.5601 1905 1.3389 1906 0.8430 1907 0.5575 1908 0.3797 1909 -0.3779 1910 -0.4576 1911 -0.5926 1912 0.4162 1913 0.3899 1914 -0.0483 1915 0.4623 1916 -1.1306 1917 -0.8095 1918 0.1619 1919 0.0405 1920 -0.6254 1921 -0.8979 1922 -0.7550 1923 0.0698 1924 -0.5266 1925 0.0043 1926 1.6701 1927 0.0877 1928 0.0857 1929 0.3731 1930 0.3519 1931 1.1228 1932 -0.2245 1933 -1.3024 1934 0.6790 1935 0.3927 1936 1.3323 1937 0.0119 1938 0.0842 1939 -0.0873 1940 1.9107 1941 2.3668 1942 0.6518 1943 -0.1180 1944 -0.5347 1945 -0.2958 1946 -0.2946 1947 0.5349 1948 -0.5930 1949 -1.5273 1950 -1.8647 1951 -0.7348 1952 -1.1520 1953 -0.4095 1954 -0.2168 1955 -1.8721 1956 -1.6267 1957 0.2875 1958 0.7928 1959 0.3512 1960 0.1441 1961 -0.3582 1962 -1.0323 1963 -0.2632 1964 -0.9315 1965 -0.2073 1966 -0.3935 1967 -0.8210 1968 -0.1539 1969 -0.0915 1970 -0.3457 1971 -1.3451 1972 -0.8847 1973 -0.8172 1974 -0.3605 1975 -1.3181 1976 -0.1464 1977 0.3037 1978 0.2243 1979 0.3267 1980 0.5967 1981 0.9846 1982 0.0959 1983 1.3166 1984 0.6707 1985 0.1999 1986 1.1967 1987 1.4882 1988 0.2062 1989 -0.2886 1990 -0.3845 1991 -0.5527 1992 0.9034 1993 1.1006 1994 -0.2998 1995 0.5979 1996 0.6809 1997 1.2992 1998 -0.0354 1999 -1.4487 2000 -0.7885 2001 -0.6386 2002 -0.1378 2003 0.5026 2004 -0.0477 2005 -0.0131 2006 0.0216 2007 -0.4116 2008 -1.2489 2009 -0.5284 2010 -0.5851 2011 -1.5024 2012 -1.1286 2013 -0.7817 2014 0.6998 2015 1.1900 2016 0.9307 2017 0.1601 2018 -0.1762 2019 0.1156 2020 -0.7594 2021 -1.3713 2022 -1.5292 2023 -1.4089