TABLE 4B. - Number of nonfatal disabling injuries, by general work location,
at bituminous coal mines in the United States, 1931-77
Underground mines Total
Year underground
Underground Surface mining
1931 50,286 3,095 53,381
1932 35,923 2,663 38,586
1933 40,052 3,038 43,090
1934 42,846 3,411 46,257
1935 43,666 3,128 46,794
1936 46,402 2,904 49,306
1937 48,268 3,304 51,572
1938 33,692 2,066 35,758
1939 34,822 2,589 37,411
1940 39,696 2,959 42,655
1941 42,218 2,969 45,187
1942 48,267 3,466 51,733
1943 45,035 4,501 49,536
1944 44,233 4,976 49,209
1945 39,467 4,496 43,963
1946 36,424 4,357 40,781
1947 39,162 4,469 43,631
1948 35,237 4,306 39,543
1949 23,205 2,688 25,893
1950 23,811 2,800 26,611
1951 23,579 2,725 26,304
1952 20,029 2,320 22,349
1953 16,911 1,876 18,787
1954 12,111 1,453 13,564
1955 13,287 1,679 14,966
1956 13,645 1,660 15,305
1957 13,092 1,640 14,732
1958 9,790 1,241 11,031
1959 8,475 1,071 9,546
1960 8,344 1,144 9,488
1961 7,875 1,105 8,980
1962 7,808 1,042 8,850
1963 7,750 1,084 8,834
1964 7,717 996 8,713
1965 7,951 1,009 8,960
1966 7,470 747 8,217
1967 7,418 655 8,073
1968 7,124 607 7,731
1969 7,643 496 8,139
1970 8,738 610 9,348
1971 8,755 774 9,529
1972 9,751 547 10,298
1973 8,745 386 9,131
1974 6,266 376 6,642
1975 8,137 517 8,654
1976 10,621 730 11,351
1977 10,933 732 11,665
NA Not available.
Total
Year Strip Auger Culm Dredges surface Total
bank mining mining
1931 594 NA NA NA 594 53,975
1932 766 NA NA NA 766 39,352
1933 856 NA NA NA 856 43,946
1934 725 NA NA NA 725 46,982
1935 735 NA NA NA 735 47,529
1936 1,208 NA NA - 1,208 50,514
1937 1,275 NA NA - 1,275 52,847
1938 1,036 NA NA - 1,036 36,794
1939 1,133 NA NA - 1,133 38,544
1940 1,339 NA NA - 1,339 43,994
1941 1,450 NA NA - 1,450 46,637
1942 1,460 NA NA - 1,460 53,193
1943 1,531 NA - - 1,531 51,067
1944 2,044 NA - - 2,044 51,253
1945 2,231 NA - - 2,231 46,194
1946 2,036 NA - - 2,036 42,817
1947 2,394 NA - - 2,394 46,025
1948 2,535 NA - - 2,535 42,078
1949 1,655 NA - - 1,655 27,548
1950 1,779 NA - - 1,779 28,390
1951 1,777 NA - - 1,777 28,081
1952 1,370 NA - - 1,370 23,719
1953 1,325 NA - - 1,325 20,112
1954 1,182 NA - - 1,182 14,746
1955 968 32 - - 1,000 15,966
1956 1,083 98 - - 1,181 16,486
1957 1,107 76 - - 1,183 15,915
1958 947 58 - - 1,005 12,036
1959 853 41 - - 894 10,440
1960 942 71 - - 1,013 10,501
1961 868 54 - - 922 9,902
1962 872 61 - - 933 9,783
1963 921 83 - - 1,004 9,838
1964 949 66 - - 1,015 9,728
1965 1,032 79 - - 1,111 10,071
1966 917 90 - - 1,007 9,224
1967 831 94 - - 925 8,998
1968 914 94 - - 1,008 8,739
1969 851 91 - - 942 9,081
1970 1,207 99 - - 1,306 10,654
1971 1,414 111 - - 1,525 11,054
1972 1,178 49 - - 1,227 11,525
1973 1,091 45 - - 1,136 10,267
1974 1,147 28 - - 1,175 7,817
1975 1,613 36 1 - 1,650 10,304
1976 1,945 31 - - 1,976 13,327
1977 2,142 24 - - 2,166 13,831
NA Not available.
Independent Mechanical
Year shops and cleaning Grand
yards plants total
1931 NA NA 53,975
1932 NA NA 39,352
1933 NA NA 43,946
1934 NA NA 46,982
1935 NA NA 47,529
1936 NA NA 50,514
1937 NA NA 52,847
1938 NA NA 36,794
1939 NA NA 38,544
1940 NA NA 43,994
1941 NA NA 46,637
1942 NA NA 53,193
1943 NA NA 51,067
1944 NA NA 51,253
1945 NA NA 46,194
1946 NA NA 42,817
1947 NA NA 46,025
1948 NA NA 42,078
1949 NA NA 27,548
1950 NA NA 28,390
1951 NA NA 28,081
1952 NA NA 23,719
1953 NA NA 20,112
1954 NA NA 14,746
1955 NA NA 15,966
1956 NA NA 16,486
1957 NA NA 15,915
1958 NA NA 12,036
1959 NA NA 10,440
1960 NA NA 10,501
1961 NA NA 9,902
1962 NA NA 9,783
1963 NA NA 9,838
1964 NA NA 9,728
1965 NA NA 10,071
1966 NA 393 9,617
1967 NA 508 9,506
1968 NA 396 9,135
1969 NA 344 9,425
1970 NA 395 11,049
1971 NA 309 11,363
1972 43 444 12,012
1973 66 547 10,880
1974 71 410 8,298
1975 79 473 10,856
1976 104 665 14,096
1977 112 757 14,700
NA Not available.
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