1882 -.24
 1883 -.32
 1884 -.46
 1885 -.52
 1886 -.47
 1887 -.30
 1888 -.15
 1889 -.12
 1890 -.19
 1891 -.27
 1892 -.29
 1893 -.45
 1894 -.37
 1895 -.27
 1896 -.14
 1897 -.25
 1898 -.01
 1899 -.04
 1900 -.05
 1901 -.15
 1902 -.16
 1903 -.36
 1904 -.37
 1905 -.39
 1906 -.23
 1907 -.19
 1908 -.04
 1909  .00
 1910 -.12
 1911 -.16
 1912 -.08
 1913 -.17
 1914 -.30
 1915 -.34
 1916 -.32
 1917 -.36
 1918 -.41
 1919 -.09
 1920  .16
 1921  .13
 1922  .01
 1923  .16
 1924 -.06
 1925 -.06
 1926 -.03
 1927  .00
 1928 -.04
 1929  .17
 1930  .14
 1931  .26
 1932  .63
 1933  .60
 1934  .43
 1935  .40
 1936  .44
 1937  .36
 1938  .35
 1939  .44
 1940  .48
 1941  .34
 1942  .20
 1943  .19
 1944  .21
 1945  .21
 1946  .16
 1947  .17
 1948  .12
 1949 -.10
 1950 -.05
 1951  .14
 1952  .27
 1953  .32
 1954  .46
 1955  .43
 1956  .26
 1957  .12
 1958  .08
 1959  .02
 1960 -.01
 1961  .01
 1962 -.04
 1963 -.01
 1964 -.05
 1965 -.07
 1966 -.16
 1967 -.19
 1968 -.19
 1969 -.16
 1970 -.21
 1971 -.11
 1972 -.03
 1973 -.05
 1974 -.08
 1975  .07
 1976 -.09
 1977 -.23
 1978 -.15
 1979  .03
 1980 -.12
 1981 -.02
 1982  .10
 1983 -.02
 1984  .00
 1985  .23
 1986  .30
 1987  .26
 1988  .52
 1989  .51
 1990  .40
 1991  .25
 1992  .38
 1993  .28
 1994  .11
 1995  .06
 1996  .39
 1997  .48
 1998  .52
 1999  .71
 2000  .81
 2001  .67
 2002  .57
 2003  .61
 2004  .67
 2005  .71
 2006  .63