UNITED STATES
DEPARTMENT OF LABOR
DEPARTMENT OF LABOR
| Historical Data 1931 - 1977 All Coal Mines in the United States |
|---|
TABLE 6. - Nonfatal disabling injury-frequency rates
per million man-hours, by general work location,
at all coal mines in the United States, 1931-77
Underground mines Total
Year underground
Underground Surface mining
1931 95.59 46.13 88.69
1932 86.70 45.82 80.71
1933 77.87 54.52 74.43
1934 81.85 47.19 76.80
1935 83.07 44.76 77.63
1936 78.40 39.46 72.87
1937 78.27 38.29 72.83
1938 77.96 34.67 71.81
1939 73.38 39.67 68.59
1940 74.02 40.17 69.32
1941 72.24 36.25 67.14
1942 72.31 34.34 66.61
1943 68.82 37.57 63.72
1944 65.54 36.86 60.40
1945 66.71 36.68 61.17
1946 71.30 39.00 65.30
1947 68.91 35.90 62.96
1948 67.68 36.55 61.95
1949 63.48 32.51 57.69
1950 60.26 30.96 54.77
1951 57.93 30.42 52.77
1952 58.84 29.44 53.26
1953 54.92 26.38 49.38
1954 53.77 25.63 47.98
1955 53.12 28.14 48.10
1956 54.35 27.40 48.88
1957 54.44 27.17 49.23
1958 53.23 26.52 47.94
1959 50.21 24.21 44.90
1960 51.13 26.40 46.09
1961 53.38 28.30 48.19
1962 54.45 27.57 48.88
1963 53.86 28.36 48.62
1964 53.61 26.84 48.35
1965 54.25 27.58 49.09
1966 51.72 31.16 48.78
1967 50.38 29.24 47.57
1968 49.39 30.07 46.99
1969 51.58 26.70 48.77
1970 54.11 32.12 51.79
1971 58.30 41.11 56.40
1972 57.61 32.36 55.32
1973 51.33 23.03 48.80
1974 36.38 21.14 34.95
1975 38.82 22.00 37.13
1976 48.90 30.58 47.09
1977 53.28 30.23 50.86
NA Not available.
Total
Year Strip Auger Culm Dredges surface Total
banks mining mining
1931 59.13 NA NA NA 59.13 88.26
1932 69.03 NA NA NA 69.03 80.50
1933 82.29 NA NA NA 82.29 74.58
1934 68.23 NA NA NA 68.23 76.63
1935 68.86 NA NA NA 68.86 77.43
1936 75.19 NA NA 24.66 74.47 72.91
1937 64.80 NA NA 55.96 64.60 72.62
1938 57.55 NA NA 38.26 57.22 71.36
1939 54.00 NA NA 50.66 53.95 68.12
1940 52.78 NA NA 47.72 52.67 68.75
1941 45.21 NA NA 34.88 44.97 66.26
1942 38.33 NA NA - 37.50 65.40
1943 37.88 NA 51.11 27.07 38.41 62.44
1944 38.94 NA 60.98 19.43 40.10 59.06
1945 39.92 NA 44.27 18.54 39.83 59.58
1946 36.52 NA 43.74 26.78 36.71 62.92
1947 37.46 NA 19.80 15.95 36.65 60.72
1948 36.32 NA 43.65 12.46 36.26 59.53
1949 31.70 NA 30.81 20.24 31.55 55.11
1950 31.63 NA 24.73 5.75 31.39 52.38
1951 34.20 NA 43.62 22.14 34.25 50.99
1952 28.11 NA 23.04 28.05 28.06 50.66
1953 29.48 NA 28.71 32.05 29.48 47.23
1954 29.01 NA 20.40 26.37 28.90 45.67
1955 23.14 21.30 29.73 4.67 23.07 45.03
1956 24.31 36.49 41.48 21.03 25.22 45.69
1957 25.72 32.22 58.94 16.98 26.68 46.10
1958 23.86 28.37 24.95 3.97 23.96 44.06
1959 22.64 21.20 24.97 3.96 22.52 41.11
1960 24.45 32.81 30.69 4.60 24.81 42.32
1961 24.44 28.73 35.20 8.08 24.66 43.91
1962 23.50 26.31 30.33 17.32 23.68 44.08
1963 24.25 29.66 56.91 14.37 24.87 43.96
1964 24.75 26.83 27.15 9.24 24.81 43.78
1965 26.12 33.20 26.75 5.19 26.39 44.65
1966 25.00 31.26 16.08 11.74 25.25 44.04
1967 22.43 34.37 21.11 6.79 23.07 42.53
1968 24.59 31.29 25.74 - 24.97 42.29
1969 21.84 29.84 16.91 - 22.22 42.95
1970 25.67 26.82 19.09 - 25.60 45.60
1971 26.54 29.39 40.58 - 26.81 48.46
1972 24.84 25.19 45.21 - 24.95 48.45
1973 20.94 25.97 35.44 - 21.14 42.15
1974 16.83 14.86 35.16 - 16.85 29.85
1975 17.74 24.77 23.54 - 17.86 31.42
1976 20.04 27.02 11.80 - 20.08 38.91
1977 18.91 21.38 16.94 - 18.93 39.91
NA Not available.
Independent Mechanical
Year shops and cleaning Grand
yards plants total
1931 NA NA 88.26
1932 NA NA 80.50
1933 NA NA 74.58
1934 NA NA 76.63
1935 NA NA 77.43
1936 NA NA 72.91
1937 NA NA 72.62
1938 NA NA 71.36
1939 NA NA 68.12
1940 NA NA 68.75
1941 NA NA 66.26
1942 NA NA 65.40
1943 NA NA 62.44
1944 NA NA 59.06
1945 NA NA 59.58
1946 NA NA 62.92
1947 NA NA 60.72
1948 NA NA 59.53
1949 NA NA 55.11
1950 NA NA 52.38
1951 NA NA 50.99
1952 NA NA 50.66
1953 NA NA 47.23
1954 NA NA 45.67
1955 NA NA 45.03
1956 NA NA 45.69
1957 NA 41.11 46.04
1958 NA 36.51 43.94
1959 NA 39.75 41.09
1960 NA 39.19 42.28
1961 NA 40.53 43.86
1962 NA 36.42 43.96
1963 NA 44.51 43.97
1964 NA 49.49 43.86
1965 NA 51.62 44.73
1966 NA 28.59 42.85
1967 NA 33.68 41.84
1968 NA 27.62 41.12
1969 NA 27.24 41.76
1970 NA 29.34 44.40
1971 NA 25.96 46.89
1972 13.22 24.86 46.08
1973 14.78 28.16 40.41
1974 14.77 20.56 28.79
1975 13.62 19.60 30.17
1976 16.60 26.41 37.55
1977 18.57 26.13 38.37
NA Not available.
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