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Historical Data 1964 - 1977
Officeworkers at Coal Operations


TABLE 38 - Injury experience and worktime data for officeworkers at
           coal operations, 1964-77


                                Injuries
Year             Nonfatal            All      Non-       All
          Fatal disabling      disabling disabling  injuries

1964         -         -              -        NA         - 
1965         1         1              2        NA         2 
1966         -         2              2        NA         2 
1967         -         -              -        NA         - 
1968         -         2              2        NA         2 
1969         -         -              -        NA         - 
1970         -         -              -        NA         - 
1971         -         2              2        NA         2 
1972         -         6              6        33        39 
1973         -        10             10        42        52 
1974         -         8              8        21        29 
1975         -        12             12        11        23 
1976         -        17             17        29        46 
1977         -        15             15        21        36 

NA Not available.

1/ Less than 0.5.

                     Frequency rates per
                      million man-hours 
Year             Nonfatal            All      Non-       All
          Fatal disabling      disabling disabling  injuries

1964         -         -              -        NA         - 
1965      0.16      0.16           0.32        NA      0.32 
1966         -      0.37           0.37        NA      0.37 
1967         -         -              -        NA         - 
1968         -      0.39           0.39        NA      0.39 
1969         -         -              -        NA         - 
1970         -         -              -        NA         - 
1971         -      0.31           0.31        NA      0.31 
1972         -      0.78           0.78      4.29      5.07 
1973         -      1.11           1.11      4.67      5.78 
1974         -      0.86           0.86      2.26      3.12 
1975         -      1.07           1.07      0.98      2.05 
1976         -      1.37           1.37      2.33      3.70 
1977         -      1.13           1.13      1.58      2.71 

NA Not available.
1/ Less than 0.5.                      Severity rates per
                      million man-hours 
Year             Nonfatal            All Man-hours
          Fatal disabling      disabling    worked
                                       (thousands)
1964         -         -              -     5,134 
1965       961         6            967     6,245 
1966         -        35             35     5,473 
1967         -         -              -     5,186 
1968         -         5              5     5,108 
1969         -         -              -     5,201 
1970         -         -              -     5,411 
1971         -         8              8     6,539 
1972         -        21             21     7,690 
1973         -        41             41     9,002 
1974         -        77             77     9,294 
1975         -        32             32    11,221 
1976         -        34             34    12,436 
1977         -        87             87    13,285 

NA Not available.
1/ Less than 0.5.