# year value 1880 0.3 1881 -1.48 1882 -0.34 1883 -0.63 1884 -1.67 1885 -0.4 1886 0.94 1887 -1.49 1888 -1.05 1889 -1.01 1890 -1.51 1891 0.18 1892 0.05 1893 0.02 1894 -0.3 1895 0.93 1896 -0.72 1897 -1.09 1898 1.39 1899 0.01 1900 0.91 1901 -0.72 1902 -0.96 1903 0.14 1904 -1.29 1905 -1.34 1906 0.35 1907 0.87 1908 -1.31 1909 -0.54 1910 -1.19 1911 0.97 1912 -3.28 1913 0.57 1914 -1.23 1915 -2.33 1916 -0.69 1917 0.08 1918 -0.51 1919 -1.37 1920 -1.09 1921 -0.06 1922 -2.24 1923 0.87 1924 -0.12 1925 -1.01 1926 1.76 1927 0.25 1928 0.36 1929 1 1930 0.86 1931 -1.4 1932 1.18 1933 -0.36 1934 0.32 1935 0.56 1936 -1.47 1937 -0.1 1938 0.8 1939 -0.27 1940 0.12 1941 -1.74 1942 1.08 1943 0.88 1944 -0.53 1945 -0.17 1946 0.09 1947 1.29 1948 0.55 1949 1.36 1950 0 1951 0.81 1952 -1.25 1953 0.65 1954 0.25 1955 -0.55 1956 -0.66 1957 0.09 1958 0.68 1959 -0.45 1960 0.26 1961 1.43 1962 -0.04 1963 1.24 1964 0.07 1965 -0.58 1966 0.63 1967 1.01 1968 0.35 1969 0.76 1970 0.5 1971 -0.79 1972 -1.47 1973 -0.3 1974 -1.4 1975 0.11 1976 -0.14 1977 -0.05 1978 -0.81 1979 -0.04 1980 -0.33 1981 0.03 1982 1.29 1983 -0.05 1984 0.49 1985 -0.1 1986 0.51 1987 1.55 1988 -0.41 1989 -0.2 1990 0.49 1991 0.42 1992 0.43 1993 -0.64 1994 1.14 1995 -0.06 1996 -0.46 1997 0.5 1998 -0.58 1999 0.72 2000 1.55 2001 0.11 2002 0.82 2003 0.19 2004 1.04 2005 0.63 2006 2.3 2007 -0.72 2008 0.49 2009 1.36 2010 0.13 2011 1.29 2012 1.61 2013 1.19 2014 2.22 2015 0.97 2016 0.95 2017 0.32 2018 2.15