1856  123.0
1857   83.5
1858   48.0
1859    7.5
1860    6.0
1861  164.0
1862  122.0
1863   85.0
1864   43.0
1865    6.0
1866    8.0
1867   13.0
1868   13.0
1869    8.0
1870   28.0
1871   19.0
1872   56.0
1873   43.0
1874   33.0
1875  139.0
1876   95.0
1877   76.0
1878   40.5
1879    7.0
1880    7.5
1881    3.0
1882    2.0
1883  209.0
1884  156.0
1885  144.0
1886  126.0
1887   53.0
1888  182.0
1889  123.5
1890   95.0
1891   52.5
1892   30.0
1893   20.0
1894   10.0
1895    5.0
1896    0.0
1897    0.0
1898   28.0
1899   25.0
1900   17.0
1901    9.0
1902  201.0
1903  150.0
1904  112.0
1905   61.0
1906   23.5
1907   80.0
1908   56.5
1909   36.0
1910   16.0
1911    6.0
1912   64.5
1913   50.8
1914   45.6
1915   25.4
1916    6.7
1917    3.0
1918    0.0
1919    0.0
1920    0.0
1921    0.0
1922    0.0
1923    0.0
1924    0.0
1925    0.0
1926    0.0
1927    0.0
1928    0.0
1929    1.6
1930    5.2
1931    4.6
1932    3.0
1933    1.4
1934    0.2
1935    0.0
1936    1.2
1937    7.7
1938    5.7
1939    4.1
1940    2.0
1941    0.2
1942    0.1
1943    0.0
1944    8.0
1945    6.0
1946    4.0
1947   10.0
1948    6.0
1949    4.0
1950    2.4
1951    4.3
1952    3.2
1953    2.9
1954    1.6
1955    0.4
1956    4.2
1957    3.4
1958    2.3
1959    1.2
1960    0.1
1961    0.4
1962    0.3
1963  166.2
1964  124.6
1965   85.8
1966   83.6
1967   31.4
1968   60.7
1969   40.0
1970   32.4
1971   23.7
1972    9.5
1973    9.3
1974   56.1
1975   41.0
1976   67.0
1977   45.4
1978   25.8
1979   25.4
1980   51.0
1981   41.0
1982  366.1
1983  267.2
1984  171.1
1985   85.0
1986    0.0
1987    0.0
1988    0.0
1989    0.0
1990    0.0
1991  500.0
1992  375.0
1993  250.0
1994  125.0
1995    0.0