| Historical Data 1931 - 1977 All Coal Mines in the United States |
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TABLE 5. - Fatal injury-frequency rates per miIlion man-hours by general work
location, at all coal mines in the United States, 1931-77
Undeground mines Total
Year underground
Underground Surface mining
1931 1.84 0.64 1.67
1932 1.93 0.62 1.74
1933 1.47 0.65 1.35
1934 1.58 0.67 1.45
1935 1.67 0.63 1.52
1936 1.62 0.49 1.46
1937 1.72 0.67 1.57
1938 1.78 0.52 1.60
1939 1.61 0.46 1.44
1940 1.87 0.47 1.68
1941 1.54 0.48 1.39
1942 1.63 0.56 1.47
1943 1.61 0.50 1.43
1944 1.41 0.42 1.23
1945 1.33 0.42 1.16
1946 1.31 0.42 1.15
1947 1.47 0.38 1.27
1948 1.33 0.37 1.15
1949 1.08 0.48 0.97
1950 1.05 0.46 0.94
1951 1.38 0.37 1.19
1952 1.10 0.40 0.97
1953 1.11 0.35 0.96
1954 1.26 0.46 1.10
1955 1.20 0.53 1.06
1956 1.30 0.35 1.11
1957 1.51 0.41 1.30
1958 1.48 0.36 1.26
1959 1.30 0.34 1.11
1960 1.51 0.45 1.29
1961 1.57 0.45 1.34
1962 1.55 0.51 1.34
1963 1.54 0.29 1.28
1964 1.30 0.36 1.12
1965 1.40 0.44 1.21
1966 1.26 0.31 1.12
1967 1.13 0.51 1.05
1968 1.80 0.38 1.63
1969 0.98 0.72 0.95
1970 1.25 0.72 1.20
1971 0.92 0.42 0.86
1972 0.72 0.35 0.68
1973 0.58 0.36 0.56
1974 0.52 0.39 0.51
1975 0.47 0.51 0.47
1976 0.48 0.21 0.45
1977 0.44 0.37 0.43
NA Not available.
Total
Year Strip Auger Culm Dredges surface Total
banks mining mining
1931 0.54 NA NA NA 0.54 1.66
1932 1.20 NA NA NA 1.20 1.73
1933 0.87 NA NA NA 0.87 1.34
1934 0.74 NA NA NA 0.74 1.43
1935 1.37 NA NA NA 1.37 1.52
1936 1.02 NA NA - 1.00 1.45
1937 0.60 NA NA - 0.58 1.55
1938 1.33 NA NA - 1.31 1.59
1939 0.67 NA NA - 0.66 1.42
1940 0.96 NA NA - 0.94 1.65
1941 1.11 NA NA - 1.09 1.37
1942 0.84 NA NA - 0.82 1.44
1943 0.81 NA 1.74 - 0.84 1.40
1944 0.84 NA 0.43 - 0.80 1.20
1945 0.58 NA - - 0.55 1.11
1946 0.59 NA 0.32 - 0.58 1.10
1947 0.67 NA - - 0.64 1.22
1948 0.77 NA 0.45 - 0.76 1.11
1949 0.41 NA - - 0.39 0.91
1950 0.55 NA 1.65 - 0.56 0.90
1951 0.52 NA - - 0.51 1.13
1952 0.55 NA 1.65 - 0.55 0.92
1953 0.39 NA - - 0.38 0.90
1954 0.48 NA - - 0.47 1.02
1955 0.51 2.00 2.29 - 0.56 1.00
1956 0.52 0.74 0.80 - 0.53 1.03
1957 0.42 1.27 - - 0.45 1.18
1958 0.39 1.47 - - 0.43 1.12
1959 0.43 - - 3.96 0.42 0.99
1960 0.52 1.39 1.53 - 0.57 1.16
1961 0.39 0.53 - - 0.39 1.17
1962 0.46 0.43 - - 0.45 1.17
1963 0.49 1.07 1.90 - 0.53 1.14
1964 0.33 0.41 - - 0.33 0.96
1965 0.40 0.42 - - 0.39 1.05
1966 0.55 1.04 - - 0.57 1.01
1967 0.52 0.73 - - 0.52 0.94
1968 0.57 2.00 - - 0.65 1.42
1969 0.63 0.98 - - 0.64 0.88
1970 0.55 1.08 - - 0.58 1.05
1971 0.39 0.79 - - 0.41 0.74
1972 0.38 0.51 - - 0.38 0.61
1973 0.28 0.58 - - 0.28 0.49
1974 0.33 1.06 - - 0.35 0.46
1975 0.33 2.06 - - 0.36 0.44
1976 0.22 0.87 - - 0.23 0.38
1977 0.23 1.78 - - 0.24 0.37
NA Not available.
Independent Mechanical
Year shops and cleaning Grand
yards plants total
1931 NA NA 1.66
1932 NA NA 1.73
1933 NA NA 1.34
1934 NA NA 1.43
1935 NA NA 1.52
1936 NA NA 1.45
1937 NA NA 1.55
1938 NA NA 1.59
1939 NA NA 1.42
1940 NA NA 1.65
1941 NA NA 1.37
1942 NA NA 1.44
1943 NA NA 1.40
1944 NA NA 1.20
1945 NA NA 1.11
1946 NA NA 1.10
1947 NA NA 1.22
1948 NA NA 1.11
1949 NA NA 0.91
1950 NA NA 0.90
1951 NA NA 1.13
1952 NA NA 0.92
1953 NA NA 0.90
1954 NA NA 1.02
1955 NA NA 1.00
1956 NA NA 1.03
1957 NA 0.36 1.17
1958 NA 0.39 1.11
1959 NA 0.87 0.99
1960 NA 0.48 1.15
1961 NA 0.25 1.15
1962 NA 0.80 1.16
1963 NA 0.26 1.12
1964 NA 0.55 0.96
1965 NA - 1.04
1966 NA 0.27 0.96
1967 NA 0.63 0.92
1968 NA 0.27 1.33
1969 NA 0.50 0.85
1970 NA 0.36 1.00
1971 NA 0.34 0.71
1972 - 0.32 0.58
1973 0.37 0.34 0.48
1974 - 0.41 0.45
1975 - 0.31 0.42
1976 - 0.27 0.37
1977 0.15 0.27 0.36
NA Not available.
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