1884    14.5
1909    49.2
1911    82.7
1913   124.8
1917   138.0
1919   170.0
1922   223.0
1923   266.6
1928   318.6
1931   407.5
1934   440.7
1939   469.2
1942   540.0
1945   606.0
1952   698.5
1955   822.1
1956  1132.1
1959  1525.9
1962  1612.0
1965  2094.0