1901 -0.1028 1902 0.5881 1903 0.1753 1904 0.0734 1905 0.8767 1906 0.2807 1907 0.1845 1908 0.1836 1909 -0.4413 1910 -0.5653 1911 -0.4593 1912 0.2845 1913 0.1822 1914 -0.1737 1915 0.3088 1916 -1.1864 1917 -0.9351 1918 0.1156 1919 -0.0984 1920 -0.6900 1921 -0.9506 1922 -0.5467 1923 0.1408 1924 -0.5410 1925 -0.1447 1926 1.6565 1927 0.2695 1928 0.1560 1929 0.5012 1930 0.4578 1931 1.1307 1932 -0.4040 1933 -1.5174 1934 0.7287 1935 0.5237 1936 1.5549 1937 0.0413 1938 0.1981 1939 -0.3432 1940 1.7148 1941 2.3131 1942 0.5221 1943 -0.0272 1944 -0.5000 1945 -0.2341 1946 -0.2546 1947 0.0803 1948 -0.8090 1949 -1.4037 1950 -1.6916 1951 -0.5596 1952 -1.1526 1953 -0.4412 1954 -0.0633 1955 -1.8641 1956 -1.5221 1957 0.4002 1958 1.0287 1959 0.6387 1960 0.2502 1961 -0.3640 1962 -1.0888 1963 -0.3280 1964 -0.7568 1965 -0.1733 1966 -0.2616 1967 -0.5279 1968 -0.0144 1969 -0.1770 1970 -0.2688 1971 -1.3002 1972 -1.0280 1973 -0.8555 1974 -0.1682 1975 -1.1850 1976 -0.1349 1977 0.2980 1978 0.3007 1979 0.3599 1980 0.5412 1981 1.0472 1982 0.0073 1983 1.3785 1984 0.8305 1985 0.2872 1986 1.2449 1987 1.3450 1988 0.3367 1989 -0.1253 1990 -0.3137 1991 -0.4565 1992 0.9694 1993 1.1967 1994 -0.0911 1995 0.6763 1996 0.8716 1997 1.5275 1998 0.1772 1999 -1.2129 2000 -0.5021 2001 -0.5632 2002 -0.0833 2003 0.5993 2004 0.2471 2005 0.2945 2006 0.0585 2007 -0.1606 2008 -0.9790 2009 -0.4662 2010 -0.6209 2011 -1.4458 2012 -1.2326 2013 -0.6036 2014 1.1313 2015 1.5746 2016 1.3134 2017 0.5380 2018 0.2309 2019 0.6504 2020 -0.2597 2021 -1.0294