1865 0 122.3 1875 0 102.4 1885 0 104.1 1895 0 101 1905 0 106 1915 0 113.7 1925 26 120 1935 47 121.9 1945 87 111.3 1955 164 90.1 1965 294 114.4 1975 461 141.1 1985 476 159.3