| Historical Data 1931 - 1977 Nonmetal Mines and Mills |
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TABLE 19 - Injury experience and worktime data at nonmetal mines
and mills 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 1,320 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 9 956 965 NA 965
1955 22 1,607 1,629 NA 1,629
1956 24 2,193 2,217 NA 2,217
1957 19 2,624 2,643 NA 2,643
1958 24 2,445 2,469 NA 2,469
1959 22 3,228 3,250 NA 3,250
1960 32 2,850 2,882 NA 2,882
1961 21 2,541 2,562 NA 2,562
1962 23 2,327 2,350 NA 2,350
1963 33 2,333 2,366 NA 2,366
1964 24 2,486 2,510 NA 2,510
1965 31 2,472 2,503 NA 2,503
1966 27 2,622 2,649 NA 2,649
1967 30 2,551 2,581 NA 2,581
1968 39 2,472 2,511 NA 2,511
1969 27 2,361 2,388 NA 2,388
1970 28 2,394 2,422 NA 2,422
1971 24 2,308 2,332 NA 2,332
1972 17 1,969 1,986 NA 1,986
1973 23 1,436 1,459 1,183 2,642
1974 19 1,468 1,487 1,222 2,709
1975 25 1,524 1,549 1,136 2,685
1976 22 1,507 1,529 790 2,319
1977 16 1,539 1,555 777 2,332
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 32.34 32.64 NA 32.64
1955 0.43 31.55 31.98 NA 31.98
1956 0.32 29.38 29.70 NA 29.70
1957 0.19 26.87 27.07 NA 27.07
1958 0.23 23.11 23.33 NA 23.33
1959 0.17 25.41 25.58 NA 25.58
1960 0.26 23.13 23.39 NA 23.39
1961 0.18 21.27 21.45 NA 21.45
1962 0.21 21.73 21.94 NA 21.94
1963 0.30 21.51 21.81 NA 21.81
1964 0.22 23.14 23.36 NA 23.36
1965 0.29 22.73 23.02 NA 23.02
1966 0.24 23.04 23.27 NA 23.27
1967 0.28 23.75 24.03 NA 24.03
1968 0.39 24.87 25.26 NA 25.26
1969 0.27 23.90 24.17 NA 24.17
1970 0.30 25.28 25.57 NA 25.57
1971 0.28 27.39 27.67 NA 27.67
1972 0.23 27.09 27.32 NA 27.32
1973 0.32 20.27 20.59 16.70 37.29
1974 0.25 19.57 19.82 16.29 36.11
1975 0.32 19.59 19.92 14.61 34.52
1976 0.28 19.33 19.62 10.14 29.75
1977 0.20 18.89 19.09 9.54 28.63
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 2,598 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 2,592 NA NA 50,936
1956 1,929 1,386 3,316 74,639
1957 1,168 1,122 2,290 97,642
1958 1,361 977 2,338 105,809
1959 1,039 1,027 2,066 127,039
1960 1,559 975 2,534 123,191
1961 1,055 994 2,049 119,442
1962 1,288 1,113 2,402 107,105
1963 1,825 687 2,512 108,483
1964 1,340 1,160 2,501 107,438
1965 1,711 1,339 3,050 108,735
1966 1,423 1,167 2,591 113,814
1967 1,676 890 2,566 107,400
1968 2,354 980 3,334 99,414
1969 1,640 948 2,587 98,799
1970 1,774 1,143 2,917 94,707
1971 1,709 1,281 2,989 84,278
1972 1,403 919 2,322 72,686
1973 1,948 960 2,908 70,851
1974 1,520 1,130 2,649 75,015
1975 1,929 1,062 2,991 77,779
1976 1,694 984 2,677 77,943
1977 1,179 1,251 2,430 81,457
NA Not available.
1/ Data for mill auxiliary works not available prior to 1944.
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