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Historical Data 1931 - 1977
Bituminous Coal Mines in the United States


TABLE 5B. - Fatal injury-frequency rates per miIlion man-hours by general work
            location, at bituminous coal mines in the United States, 1931-77

         Underground mines             
                                  Total
Year                              underground
    Underground        Surface         mining 

1931      1.74           0.68           1.62 
1932      1.92           0.78           1.78 
1933      1.41           0.64           1.31 
1934      1.53           0.66           1.42 
1935      1.58           0.60           1.46 
1936      1.57           0.52           1.44 
1937      1.69           0.67           1.57 
1938      1.67           0.54           1.53 
1939      1.52           0.45           1.39 
1940      1.87           0.53           1.70 
1941      1.50           0.45           1.36 
1942      1.56           0.61           1.43 
1943      1.58           0.49           1.41 
1944      1.41           0.42           1.25 
1945      1.32           0.44           1.17 
1946      1.28           0.44           1.14 
1947      1.45           0.38           1.28 
1948      1.35           0.41           1.19 
1949      1.07           0.57           0.98 
1950      1.06           0.50           0.96 
1951      1.39           0.38           1.22 
1952      1.05           0.44           0.94 
1953      1.06           0.38           0.94 
1954      1.20           0.49           1.07 
1955      1.13           0.52           1.02 
1956      1.26           0.37           1.09 
1957      1.46           0.45           1.27 
1958      1.48           0.38           1.27 
1959      1.18           0.38           1.02 
1960      1.44           0.49           1.25 
1961      1.57           0.46           1.35 
1962      1.52           0.50           1.31 
1963      1.45           0.32           1.22 
1964      1.23           0.38           1.07 
1965      1.41           0.48           1.23 
1966      1.26           0.34           1.14 
1967      1.11           0.55           1.04 
1968      1.83           0.41           1.66 
1969      0.95           0.71           0.92 
1970      1.26           0.75           1.21 
1971      0.92           0.43           0.87 
1972      0.71           0.36           0.68 
1973      0.57           0.36           0.55 
1974      0.51           0.34           0.50 
1975      0.47           0.51           0.48 
1976      0.48           0.21           0.45 
1977      0.40           0.37           0.40 

NA Not available.    

                                              Total
Year      Strip     Auger      Culm   Dredges   surface     Total
                              banks              mining    mining

1931      0.22        NA        NA        NA      0.22      1.60 
1932      1.24        NA        NA        NA      1.24      1.77 
1933      0.97        NA        NA        NA      0.97      1.31 
1934      0.86        NA        NA        NA      0.86      1.41 
1935      1.22        NA        NA        NA      1.22      1.46 
1936      0.99        NA        NA         -      0.99      1.43 
1937      0.46        NA        NA         -      0.46      1.54 
1938      1.10        NA        NA         -      1.10      1.52 
1939      0.48        NA        NA         -      0.48      1.36 
1940      0.99        NA        NA         -      0.99      1.68 
1941      1.14        NA        NA         -      1.14      1.35 
1942      0.89        NA        NA         -      0.89      1.41 
1943      0.81        NA         -         -      0.81      1.39 
1944      0.91        NA         -         -      0.91      1.23 
1945      0.65        NA         -         -      0.65      1.13 
1946      0.58        NA         -         -      0.58      1.09 
1947      0.68        NA         -         -      0.68      1.23 
1948      0.77        NA         -         -      0.77      1.15 
1949      0.42        NA         -         -      0.42      0.93 
1950      0.59        NA         -         -      0.59      0.92 
1951      0.56        NA         -         -      0.56      1.16 
1952      0.52        NA         -         -      0.52      0.90 
1953      0.45        NA         -         -      0.45      0.89 
1954      0.40        NA         -         -      0.40      0.99 
1955      0.51      2.00         -         -      0.56      0.96 
1956      0.53      0.74         -         -      0.55      1.02 
1957      0.48      1.27         -         -      0.52      1.17 
1958      0.38      1.47         -         -      0.43      1.14 
1959      0.46      0.00         -         -      0.44      0.92 
1960      0.48      1.39         -         -      0.53      1.13 
1961      0.37      0.53         -         -      0.37      1.18 
1962      0.43      0.43         -         -      0.43      1.15 
1963      0.47      1.07         -         -      0.51      1.09 
1964      0.37      0.41         -         -      0.37      0.94 
1965      0.43      0.42         -         -      0.43      1.08 
1966      0.57      1.04         -         -      0.61      1.04 
1967      0.54      0.73         -         -      0.55      0.94 
1968      0.56      2.00         -         -      0.67      1.46 
1969      0.61      0.98         -         -      0.64      0.86 
1970      0.55      1.08         -         -      0.59      1.07 
1971      0.40      0.79         -         -      0.42      0.75 
1972      0.36      0.51         -         -      0.37      0.61 
1973      0.29      0.58         -         -      0.30      0.49 
1974      0.34      1.06         -         -      0.36      0.46 
1975      0.33      2.06         -         -      0.35      0.44 
1976      0.23      0.87         -         -      0.23      0.39 
1977      0.22      1.78         -         -      0.24      0.34 

NA Not available.    

       Independent     Mechanical
Year  shops and       cleaning          Grand
          yards         plants          total

1931        NA             NA           1.60 
1932        NA             NA           1.77 
1933        NA             NA           1.31 
1934        NA             NA           1.41 
1935        NA             NA           1.46 
1936        NA             NA           1.43 
1937        NA             NA           1.54 
1938        NA             NA           1.52 
1939        NA             NA           1.36 
1940        NA             NA           1.68 
1941        NA             NA           1.35 
1942        NA             NA           1.41 
1943        NA             NA           1.39 
1944        NA             NA           1.23 
1945        NA             NA           1.13 
1946        NA             NA           1.09 
1947        NA             NA           1.23 
1948        NA             NA           1.15 
1949        NA             NA           0.93 
1950        NA             NA           0.92 
1951        NA             NA           1.16 
1952        NA             NA           0.90 
1953        NA             NA           0.89 
1954        NA             NA           0.99 
1955        NA             NA           0.96 
1956        NA             NA           1.02 
1957        NA             NA           1.17 
1958        NA             NA           1.14 
1959        NA             NA           0.92 
1960        NA             NA           1.13 
1961        NA             NA           1.18 
1962        NA             NA           1.15 
1963        NA             NA           1.09 
1964        NA             NA           0.94 
1965        NA             NA           1.08 
1966        NA           0.32           0.99 
1967        NA           0.75           0.93 
1968        NA           0.25           1.37 
1969        NA           0.46           0.84 
1970        NA           0.31           1.02 
1971        NA           0.20           0.72 
1972         -           0.36           0.59 
1973      0.39           0.37           0.48 
1974         -           0.44           0.45 
1975         -           0.29           0.42 
1976         -           0.25           0.37 
1977      0.15           0.26           0.33 

NA Not available.