| Historical Data 1931 - 1977 Pennsylvania Anthracite Mines in the United States |
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TABLE 6A. - Nonfatal disabling injury-frequency rates per million man-hours,
by general work location, at Pennsylvania anthracite mines in the
United States, 1931-77
Underground mines Total
Year underground
Underground Surface mining
1931 133.43 55.80 116.40
1932 124.91 56.98 109.82
1933 100.45 95.56 99.35
1934 117.80 63.74 106.12
1935 116.53 61.41 104.56
1936 124.37 65.01 111.15
1937 116.33 47.49 101.54
1938 131.67 51.94 114.24
1939 125.78 59.44 110.98
1940 132.94 62.21 117.53
1941 131.97 57.76 115.50
1942 119.33 51.68 103.42
1943 109.48 44.88 93.71
1944 92.75 41.74 78.88
1945 95.43 41.76 80.31
1946 104.53 39.91 86.89
1947 101.76 33.20 83.74
1948 96.39 33.01 79.90
1949 92.20 31.73 76.17
1950 97.30 33.59 80.72
1951 88.56 33.13 73.20
1952 87.78 27.90 71.13
1953 81.24 25.18 63.88
1954 84.92 23.63 64.38
1955 86.48 32.94 69.80
1956 94.35 31.35 73.61
1957 91.32 23.66 76.40
1958 87.85 28.21 73.81
1959 85.75 27.37 71.36
1960 87.23 22.67 70.66
1961 89.67 26.48 71.64
1962 89.70 27.66 72.33
1963 98.03 26.63 78.58
1964 110.59 21.27 87.36
1965 108.63 18.07 83.39
1966 108.78 24.95 81.76
1967 87.75 17.19 63.51
1968 80.64 18.26 58.92
1969 85.49 22.87 67.05
1970 77.45 19.13 61.97
1971 135.51 29.14 109.17
1972 93.21 23.05 77.83
1973 97.00 10.70 79.84
1974 80.63 35.13 72.62
1975 49.54 - 42.37
1976 53.67 16.94 48.30
1977 102.97 9.79 88.66
NA Not available.
Total
Year Strip Culm Dredges surface Total
banks mining mining
1931 44.56 NA NA 44.56 115.07
1932 26.75 NA NA 26.75 107.88
1933 66.07 NA NA 66.07 98.13
1934 55.71 NA NA 55.71 104.15
1935 75.91 NA NA 75.91 103.16
1936 65.84 NA 24.66 64.13 108.80
1937 41.50 NA 55.96 42.69 98.72
1938 36.89 NA 38.26 36.99 110.85
1939 30.08 NA 50.66 31.60 107.37
1940 24.73 NA 47.72 26.82 112.55
1941 27.89 NA 34.88 28.72 110.83
1942 20.39 NA - 17.88 98.73
1943 39.32 51.11 27.07 41.24 89.68
1944 48.85 60.98 19.43 50.39 76.05
1945 50.98 44.27 18.54 47.37 77.32
1946 44.75 43.74 26.78 43.45 82.65
1947 46.19 19.80 15.95 39.53 79.41
1948 36.97 43.65 12.46 36.50 75.69
1949 33.90 30.81 20.24 32.56 71.88
1950 41.55 24.73 5.75 38.98 76.14
1951 44.43 43.62 22.14 43.78 69.94
1952 31.41 23.04 28.05 30.87 66.35
1953 34.22 28.71 32.05 33.66 59.85
1954 26.39 20.40 26.37 25.92 59.18
1955 27.79 29.73 4.67 27.19 63.46
1956 31.67 41.48 21.03 32.70 66.31
1957 34.65 58.94 16.98 37.74 68.30
1958 33.42 24.95 3.97 31.42 63.85
1959 37.68 24.97 3.96 34.95 62.16
1960 38.38 30.69 4.60 36.19 61.06
1961 39.21 35.20 8.08 37.40 61.43
1962 34.90 30.33 17.32 33.68 60.53
1963 36.91 56.91 14.37 37.96 65.41
1964 34.96 27.15 9.24 33.18 69.43
1965 40.28 26.75 5.19 37.18 68.37
1966 37.80 16.08 11.74 33.99 63.92
1967 37.12 21.11 6.79 33.48 50.86
1968 38.32 25.74 - 35.01 47.06
1969 34.95 16.91 - 31.08 47.13
1970 38.50 19.09 - 34.25 45.32
1971 41.48 40.58 - 40.54 62.85
1972 48.10 46.37 - 47.19 54.81
1973 51.16 35.44 - 48.39 56.63
1974 39.99 37.23 - 39.66 46.85
1975 49.92 35.92 - 48.28 46.77
1976 59.40 19.76 - 54.16 52.70
1977 47.38 32.51 - 45.74 54.98
NA Not available.
Independent Mechanical
Year shops and cleaning Grand
yards plants total
1931 NA NA 115.07
1932 NA NA 107.88
1933 NA NA 98.13
1934 NA NA 104.15
1935 NA NA 103.16
1936 NA NA 108.80
1937 NA NA 98.72
1938 NA NA 110.85
1939 NA NA 107.37
1940 NA NA 112.55
1941 NA NA 110.83
1942 NA NA 98.73
1943 NA NA 89.68
1944 NA NA 76.05
1945 NA NA 77.32
1946 NA NA 82.65
1947 NA NA 79.41
1948 NA NA 75.69
1949 NA NA 71.88
1950 NA NA 76.14
1951 NA NA 69.94
1952 NA NA 66.35
1953 NA NA 59.85
1954 NA NA 59.18
1955 NA NA 63.46
1956 NA NA 66.31
1957 NA 41.11 64.93
1958 NA 36.51 59.88
1959 NA 39.75 58.66
1960 NA 39.19 57.30
1961 NA 40.53 57.75
1962 NA 36.42 56.14
1963 NA 44.51 61.53
1964 NA 49.49 65.89
1965 NA 51.62 65.16
1966 NA 48.72 60.64
1967 NA 44.33 49.27
1968 NA 42.15 45.77
1969 NA 53.42 48.85
1970 NA 59.32 49.20
1971 NA 51.73 59.37
1972 25.67 44.98 51.03
1973 47.90 56.70 56.24
1974 54.73 50.12 48.40
1975 63.37 56.60 50.74
1976 64.90 63.13 56.64
1977 97.46 53.82 55.72
NA Not available.
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