TABLE 39 - Injury experience and worktime data for officeworkers at coal,
           metal, nonmetal, stone and sand and gravel operations, 1955-77

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

1955         1        16             17        NA        17 
1956         -         6              6        NA         6 
1957         -        23             23        NA        23 
1958         2        25             27        NA        27 
1959         2        33             35        NA        35 
1960         -        25             25        NA        25 
1961         -        28             28        NA        28 
1962         -        23             23        NA        23 
1963         1        29             30        NA        30 
1964         -        27             27        NA        27 
1965         1        21             22        NA        22 
1966         2        32             34        NA        34 
1967         -        43             43        NA        43 
1968         -        28             28        NA        28 
1969         -        21             21        NA        21 
1970         -        47             47        NA        47 
1971         -        31             31        NA        31 
1972         -        31             31        33        64 
1973         -        32             32        86       118 
1974         -        24             24        53        77 
1975         -        29             29        44        73 
1976         -        50             50        63       113 
1977         1        36             37        73       110 

NA Not available.

1/ Less than 0.5.  

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

1955      0.05      0.77           0.82        NA      0.82 
1956         -      0.25           0.25        NA      0.25 
1957         -      0.94           0.94        NA      0.94 
1958      0.07      0.85           0.92        NA      0.92 
1959      0.06      0.97           1.03        NA      1.03 
1960         -      0.76           0.76        NA      0.76 
1961         -      0.71           0.71        NA      0.71 
1962         -      0.56           0.56        NA      0.56 
1963      0.03      0.74           0.76        NA      0.76 
1964         -      0.62           0.62        NA      0.62 
1965      0.02      0.46           0.48        NA      0.48 
1966      0.04      0.63           0.67        NA      0.67 
1967         -      0.86           0.86        NA      0.86 
1968         -      0.58           0.58        NA      0.58 
1969         -      0.42           0.42        NA      0.42 
1970         -      0.93           0.93        NA      0.93 
1971         -      0.59           0.59        NA      0.59 
1972         -      0.64           0.64      0.68      1.32 
1973         -      0.59           0.59      1.59      2.18 
1974         -      0.42           0.42      0.93      1.35 
1975         -      0.44           0.44      0.67      1.12 
1976         -      0.68           0.68      0.86      1.54 
1977      0.01      0.46           0.47      0.93      1.40 

NA Not available.

1/ Less than 0.5.

                      Severity rates per
                      million man-hours 
Year             Nonfatal            All Man-hours
          Fatal disabling      disabling    worked
                                       (thousands)
1955       289        NA             NA    20,763 
1956         -       (1/)           (1/)   24,217 
1957         -        30             30    24,405 
1958       409        15            425    29,308 
1959       354        22            376    33,921 
1960         -         2              2    32,868 
1961         -         8              8    39,458 
1962         -        22             22    41,260 
1963       153        24            177    39,328 
1964         -        25             25    43,649 
1965       132         8            140    45,395 
1966       238        14            252    50,525 
1967         -        21             21    50,109 
1968         -        28             28    47,964 
1969         -        11             11    49,656 
1970         -        15             15    50,748 
1971         -         9              9    52,365 
1972         -        16             16    48,490 
1973         -        14             14    54,230 
1974         -        18             18    56,934 
1975         -        13             13    65,254 
1976         -        15             15    73,549 
1977        77        29            106    78,345 

NA Not available.

1/ Less than 0.5.