1856 -0.37
1857 -0.46
1858 -0.42
1859 -0.23
1860 -0.39
1861 -0.41
1862 -0.53
1863 -0.25
1864 -0.45
1865 -0.24
1866 -0.21
1867 -0.30
1868 -0.21
1869 -0.29
1870 -0.32
1871 -0.36
1872 -0.21
1873 -0.29
1874 -0.39
1875 -0.42
1876 -0.41
1877 -0.13
1878 -0.00
1879 -0.29
1880 -0.28
1881 -0.25
1882 -0.23
1883 -0.31
1884 -0.36
1885 -0.33
1886 -0.26
1887 -0.37
1888 -0.31
1889 -0.17
1890 -0.38
1891 -0.33
1892 -0.42
1893 -0.45
1894 -0.38
1895 -0.36
1896 -0.16
1897 -0.15
1898 -0.34
1899 -0.23
1900 -0.14
1901 -0.24
1902 -0.37
1903 -0.44
1904 -0.49
1905 -0.37
1906 -0.31
1907 -0.50
1908 -0.52
1909 -0.50
1910 -0.46
1911 -0.48
1912 -0.41
1913 -0.41
1914 -0.25
1915 -0.15
1916 -0.37
1917 -0.49
1918 -0.38
1919 -0.29
1920 -0.23
1921 -0.22
1922 -0.31
1923 -0.28
1924 -0.34
1925 -0.24
1926 -0.10
1927 -0.20
1928 -0.23
1929 -0.38
1930 -0.16
1931 -0.08
1932 -0.12
1933 -0.25
1934 -0.13
1935 -0.17
1936 -0.13
1937 -0.04
1938 0.06
1939 -0.02
1940 -0.03
1941 0.06
1942 0.04
1943 0.04
1944 0.19
1945 0.06
1946 -0.12
1947 -0.11
1948 -0.11
1949 -0.12
1950 -0.21
1951 -0.08
1952 0.01
1953 0.07
1954 -0.18
1955 -0.19
1956 -0.26
1957 0.04
1958 0.10
1959 0.03
1960 -0.01
1961 0.04
1962 0.02
1963 0.05
1964 -0.23
1965 -0.16
1966 -0.07
1967 -0.08
1968 -0.10
1969 0.03
1970 -0.03
1971 -0.19
1972 -0.04
1973 0.09
1974 -0.18
1975 -0.12
1976 -0.22
1977 0.06
1978 -0.03
1979 0.07
1980 0.11
1981 0.13
1982 0.06
1983 0.25
1984 0.03
1985 0.01
1986 0.10
1987 0.25
1988 0.25
1989 0.19
1990 0.34
1991 0.29
1992 0.14
1993 0.19
1994 0.26
1995 0.38
1996 0.22
1997 0.43
1998 0.59
1999 0.33
2000 0.29