UNITED STATES
DEPARTMENT OF LABOR
DEPARTMENT OF LABOR
| Historical Data 1931 - 1977 Nonmetal Mines and Mills |
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TABLE 20 - Injury experience and worktime data at nonmetal mines
in the United States, 1931-77
Injuries
Year Nonfatal All Non- All
Fatal disabling disabling disabling injuries
1931 11 841 852 NA 852
1932 7 528 535 NA 535
1933 8 745 753 NA 753
1934 8 787 795 NA 795
1935 7 813 820 NA 820
1936 4 1,044 1,048 NA 1,048
1937 13 987 1,000 NA 1,000
1938 6 726 732 NA 732
1939 10 719 729 NA 729
1940 14 826 840 NA 840
1941 17 1,182 1,199 NA 1,199
1942 22 1,537 1,559 NA 1,559
1943 25 1,471 1,496 NA 1,496
1944 17 1,283 1,300 NA 1,300
1945 16 1,145 1,161 NA 1,161
1946 26 1,369 1,395 NA 1,395
1947 12 1,308 1,328 NA 1,320
1948 15 1,176 1,191 NA 1,191
1949 10 1,125 1,135 NA 1,135
1950 19 1,238 1,257 NA 1,257
1951 17 1,351 1,368 NA 1,368
1952 14 1,171 1,185 NA 1,185
1953 22 1,419 1,441 NA 1,441
1954 9 954 965 NA 965
1955 19 1,156 1,175 NA 1,175
1956 17 1,036 1,053 NA 1,053
1957 9 1,112 1,121 NA 1,121
1958 15 955 970 NA 970
1959 11 1,072 1,083 NA 1,083
1960 19 1,056 1,075 NA 1,075
1961 15 861 876 NA 876
1962 14 944 958 NA 958
1963 31 857 888 NA 888
1964 18 906 924 NA 924
1965 21 989 1,010 NA 1,010
1966 16 1,058 1,074 NA 1,074
1967 17 1,026 1,043 NA 1,043
1968 36 953 989 NA 989
1969 17 880 897 NA 897
1970 18 799 817 NA 817
1971 15 741 756 NA 756
1972 10 621 631 NA 631
1973 16 806 822 723 1,545
1974 14 869 883 719 1,602
1975 13 858 871 641 1,512
1976 14 666 680 359 1,039
1977 10 621 631 331 962
NA Not available.
Frequency rates per
million man-hours
Year Nonfatal All Non- All
Fatal disabling disabling disabling injuries
1931 0.61 46.88 47.49 NA 47.49
1932 0.59 44.65 45.24 NA 45.24
1933 0.57 52.71 53.28 NA 53.28
1934 0.53 51.82 52.35 NA 52.35
1935 0.43 50.28 50.72 NA 50.72
1936 0.19 48.43 48.62 NA 48.62
1937 0.63 48.06 48.69 NA 48.69
1938 0.34 40.72 41.06 NA 41.06
1939 0.58 41.61 42.19 NA 42.19
1940 0.74 43.50 44.24 NA 44.24
1941 0.73 50.89 51.63 NA 51.63
1942 0.78 54.71 55.49 NA 55.49
1943 0.89 52.54 53.43 NA 53.43
1944 0.66 49.81 50.47 NA 50.47
1945 0.65 46.52 47.17 NA 47.17
1946 0.97 50.94 51.90 NA 51.90
1947 0.42 45.40 45.82 NA 45.82
1948 0.54 42.33 42.87 NA 42.87
1949 0.37 41.75 42.12 NA 42.12
1950 0.67 43.51 44.17 NA 44.17
1951 0.56 44.84 45.40 NA 45.40
1952 0.48 40.44 40.93 NA 40.93
1953 0.72 46.54 47.26 NA 47.26
1954 0.30 32.64 32.64 NA 32.64
1955 0.61 37.18 37.79 NA 37.79
1956 0.50 30.50 31.00 NA 31.00
1957 0.24 29.36 29.60 NA 29.60
1958 0.43 27.56 28.00 NA 28.00
1959 0.30 29.50 29.81 NA 29.81
1960 0.52 28.69 29.21 NA 29.21
1961 0.42 24.24 24.66 NA 24.66
1962 0.43 29.06 29.49 NA 29.49
1963 0.95 26.34 27.29 NA 27.29
1964 0.50 25.18 25.68 NA 25.68
1965 0.56 26.19 26.75 NA 26.75
1966 0.39 25.80 26.19 NA 26.19
1967 0.44 26.61 27.06 NA 27.06
1968 1.01 26.74 27.76 NA 27.76
1969 0.48 25.04 25.52 NA 25.52
1970 0.56 24.64 25.21 NA 25.21
1971 0.53 25.95 26.48 NA 26.48
1972 0.39 24.49 24.89 NA 24.89
1973 0.55 27.73 28.28 24.88 53.16
1974 0.44 27.34 27.78 22.62 50.40
1975 0.37 24.21 24.58 18.09 42.67
1976 0.45 21.32 21.77 11.49 33.26
1977 0.31 19.41 19.72 10.34 30.06
NA Not available.
Severity rates per
million man-hours
Year Nonfatal All Man-hours
Fatal disabling disabling worked
(thousands)
1931 3,679 NA NA 17,941
1932 3,552 NA NA 11,825
1933 3,396 NA NA 14,134
1934 3,161 NA NA 15,187
1935 2,593 NA NA 16,168
1936 1,113 NA NA 21,556
1937 3,798 NA NA 20,536
1938 2,019 NA NA 17,827
1939 3,472 NA NA 17,281
1940 4,424 NA NA 18,988
1941 4,392 NA NA 23,225
1942 4,699 NA NA 28,093
1943 5,357 NA NA 27,999
1944 3,960 NA NA 25,760
1945 3,900 NA NA 24,613
1946 5,804 NA NA 26,877
1947 2,499 NA NA 28,809
1948 3,239 NA NA 27,784
1949 2,226 NA NA 26,948
1950 4,006 NA NA 28,456
1951 3,385 NA NA 30,130
1952 2,901 NA NA 28,954
1953 4,330 NA NA 30,488
1954 1,827 NA NA 29,564
1955 3,666 NA NA 31,093
1956 3,003 1,739 4,742 33,963
1957 1,426 1,658 3,084 37,877
1958 2,598 1,548 4,146 34,648
1959 1,816 1,240 3,056 36,334
1960 3,097 1,381 4,478 36,805
1961 2,534 1,524 4,058 35,517
1962 2,586 1,688 4,274 32,484
1963 5,716 914 6,630 32,539
1964 3,002 1,387 4,389 35,977
1965 3,337 1,711 5,048 37,760
1966 2,341 1,245 3,586 41,003
1967 2,646 853 3,499 38,550
1968 6,062 1,120 7,182 35,633
1969 2,902 1,102 4,004 35,147
1970 3,332 1,080 4,412 32,414
1971 3,152 1,470 4,622 28,555
1972 2,367 1,165 3,531 25,353
1973 3,303 1,377 4,680 29,061
1974 2,643 1,331 3,974 31,787
1975 2,201 1,427 3,628 35,437
1976 2,689 1,191 3,880 31,236
1977 1,875 1,290 3,165 32,000
NA Not available.
1/ Data for mill auxiliary works not available prior to 1944.
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