YEAR        I        F        C
    1935    20.36    197.0      6.5
    1936    25.98    210.3     15.8
    1937    25.94    223.1     27.7
    1938    27.53    216.7     39.2
    1939    24.60    286.4     48.6
    1940    28.54    298.0     52.5
    1941    43.41    276.9     61.5
    1942    42.81    272.6     80.5
    1943    27.84    287.4     94.4
    1944    32.60    330.3     92.6
    1945    39.03    324.4     92.3
    1946    50.17    401.9     94.2
    1947    51.85    407.4    111.4
    1948    64.03    409.2    127.4
    1949    68.16    482.2    149.3
    1950    77.34    673.8    164.4
    1951    95.30    676.9    177.2
    1952    99.49    702.0    200.0
    1953   127.52    793.5    211.5
    1954   135.72    927.3    238.7