# year value 1880 32767 1881 32767 1882 32767 1883 32767 1884 32767 1885 32767 1886 32767 1887 32767 1888 32767 1889 32767 1890 32767 1891 32767 1892 32767 1893 32767 1894 32767 1895 32767 1896 32767 1897 32767 1898 32767 1899 32767 1900 32767 1901 0.1 1902 -0.86 1903 -0.94 1904 -0.71 1905 -0.41 1906 -0.62 1907 -0.98 1908 -1.4 1909 -0.85 1910 -1.06 1911 -1.74 1912 -0.54 1913 -0.48 1914 -1.61 1915 -1.07 1916 0.31 1917 -0.99 1918 -1.31 1919 -1.31 1920 -1.06 1921 -1.76 1922 -1.14 1923 -1.2 1924 -1.75 1925 -0.48 1926 -0.26 1927 -0.92 1928 -1.38 1929 -0.55 1930 -1.51 1931 -1.22 1932 -0.31 1933 -0.47 1934 -1.62 1935 -1.11 1936 -0.15 1937 -0.88 1938 -0.29 1939 -0.26 1940 -0.72 1941 -0.15 1942 -0.2 1943 -0.28 1944 0.73 1945 0.63 1946 0.23 1947 -0.48 1948 0.01 1949 -0.7 1950 -0.61 1951 0.43 1952 -0.21 1953 0.43 1954 -0.25 1955 -0.42 1956 -0.52 1957 -0.04 1958 0.04 1959 0.07 1960 -0.15 1961 0.12 1962 0.45 1963 -0.29 1964 -0.36 1965 0.12 1966 -0.05 1967 -0.27 1968 0.12 1969 0.65 1970 0.18 1971 0.09 1972 0.23 1973 -0.32 1974 -0.32 1975 -0.47 1976 -0.1 1977 0.32 1978 0.3 1979 0.04 1980 -0.06 1981 -0.1 1982 0.64 1983 0.43 1984 0.39 1985 0.27 1986 0.33 1987 0.83 1988 0.28 1989 0.13 1990 0.24 1991 0.32 1992 0.15 1993 0.16 1994 0.86 1995 0.5 1996 0.27 1997 1.36 1998 0.31 1999 0.24 2000 0.24 2001 0.21 2002 0.78 2003 1.07 2004 0.81 2005 0.11 2006 1.09 2007 0.17 2008 0.71 2009 0.87 2010 0.38 2011 0.72 2012 1.07 2013 0.61 2014 1.09 2015 0.84 2016 0.84 2017 0.62 2018 0.99