# year value 1880 0.07 1881 -0.56 1882 -0.21 1883 -0.47 1884 -0.22 1885 -0.41 1886 -0.7 1887 -0.51 1888 -0.37 1889 0.52 1890 0.24 1891 -0.57 1892 0.14 1893 -0.79 1894 -0.39 1895 -0.36 1896 0.35 1897 0.18 1898 0.3 1899 0.27 1900 -0.03 1901 0.01 1902 -0.22 1903 -0.3 1904 -0.35 1905 -1.12 1906 -0.23 1907 -0.13 1908 0.99 1909 0.3 1910 0.12 1911 -0.11 1912 -0.26 1913 -0.82 1914 -0.54 1915 -0.57 1916 0 1917 -1.11 1918 -0.67 1919 -0.01 1920 -0.81 1921 0.15 1922 0.21 1923 -0.08 1924 -0.2 1925 -0.11 1926 -0.74 1927 -0.39 1928 0.08 1929 0.03 1930 -0.24 1931 -0.31 1932 -0.14 1933 -0.14 1934 -0.35 1935 0.07 1936 -0.37 1937 -0.06 1938 0.31 1939 -0.2 1940 -0.55 1941 0.25 1942 0.29 1943 0.02 1944 -0.26 1945 0.01 1946 0.4 1947 0.08 1948 0 1949 -0.14 1950 0.07 1951 -0.51 1952 0.05 1953 0.22 1954 0.04 1955 -0.05 1956 -0.07 1957 -0.46 1958 0.6 1959 -0.02 1960 -0.05 1961 0.12 1962 -0.18 1963 0.11 1964 0.28 1965 -0.3 1966 0.18 1967 -0.14 1968 -0.62 1969 0.38 1970 -0.14 1971 -0.15 1972 -0.11 1973 0.53 1974 -0.08 1975 0.07 1976 -0.5 1977 0.05 1978 0.08 1979 0.14 1980 0.42 1981 -0.01 1982 -0.04 1983 0.04 1984 0.32 1985 0.05 1986 0.05 1987 0.07 1988 0.32 1989 0.06 1990 0.02 1991 0.51 1992 0.09 1993 -0.06 1994 0.39 1995 0.47 1996 0.21 1997 -0.08 1998 1.13 1999 0.77 2000 0.53 2001 0.59 2002 0.98 2003 0.84 2004 0.83 2005 0.66 2006 0.81 2007 0.66 2008 0.77 2009 0.92 2010 1.22 2011 0.55 2012 0.85 2013 0.89 2014 1.04 2015 1.02 2016 1.41 2017 1.01 2018 1.2 2019 1.14