# year value 1880 0.27 1881 -0.25 1882 -0.63 1883 -0.14 1884 -0.37 1885 -0.69 1886 -0.79 1887 -0.12 1888 0.4 1889 0.37 1890 -0.07 1891 -1.03 1892 0.33 1893 -0.82 1894 -0.15 1895 0.26 1896 0.46 1897 -0.45 1898 -0.41 1899 0.38 1900 0.19 1901 0.13 1902 0.25 1903 -1.1 1904 -0.53 1905 -1.88 1906 -0.31 1907 -1.19 1908 -0.32 1909 -0.26 1910 -0.38 1911 -0.56 1912 -0.35 1913 -0.89 1914 -0.22 1915 0.35 1916 0.12 1917 -0.75 1918 -0.58 1919 0.13 1920 -0.75 1921 0.33 1922 0.37 1923 -0.09 1924 -0.05 1925 -0.01 1926 -0.65 1927 -0.73 1928 -0.04 1929 0.77 1930 -0.06 1931 -0.14 1932 0.26 1933 -0.55 1934 -0.77 1935 -0.01 1936 -0.87 1937 -0.65 1938 0.88 1939 -0.46 1940 -0.12 1941 1.03 1942 0.7 1943 -0.03 1944 0.36 1945 0.06 1946 0.45 1947 0.75 1948 0.3 1949 -0.05 1950 -0.04 1951 -0.65 1952 0.16 1953 0.42 1954 -0.43 1955 -0.4 1956 0.16 1957 -0.74 1958 0.49 1959 0.15 1960 -0.64 1961 0.45 1962 -0.07 1963 0.25 1964 0.39 1965 -0.22 1966 0.08 1967 -0.08 1968 -0.14 1969 0.29 1970 -0.43 1971 0.01 1972 0.03 1973 0.54 1974 0.31 1975 0.05 1976 -0.63 1977 0.46 1978 0.29 1979 -0.38 1980 0.19 1981 0.68 1982 -0.04 1983 -0.24 1984 0.24 1985 0.03 1986 -0.12 1987 0.08 1988 -0.04 1989 0.05 1990 0.09 1991 0 1992 -0.09 1993 -0.05 1994 0.47 1995 0.24 1996 -0.15 1997 0.86 1998 0.78 1999 0.75 2000 1.23 2001 1.32 2002 1.22 2003 0.33 2004 1.53 2005 0.94 2006 0.93 2007 1.33 2008 1.76 2009 1.31 2010 0.91 2011 0.65 2012 1.17 2013 1.44 2014 1.1 2015 1.24 2016 1.76 2017 1.39 2018 2.11 2019 1.47