TABLE 7 - Fatal injury-severity rates per million man-hours, by general work
location, at all coal mines in the United States, 1931 - 1977
--Underground mines----- Total
underground
Year Underground Surface mines
1931 11,040 3,855 10,037
1932 11,567 3,702 10,416
1933 8,829 3,927 8,106
1934 9,475 4,022 8,680
1935 9,997 3,804 9,118
1936 9,721 2,950 8,761
1937 10,302 4,025 9,448
1938 10,655 3,129 9,585
1939 9,639 2,754 8,660
1940 11,230 2,821 10,062
1941 9,212 2,870 8,314
1942 9,762 3,389 8,805
1943 9,688 2,992 8,594
1944 8,463 2,495 7,394
1945 7,961 2,528 6,958
1946 7,884 2,521 6,888
1947 8,821 2,261 7,639
1948 7,954 2,204 6,895
1949 6,475 2,884 5,804
1950 6,323 2 756 5,654
1951 8,286 2 233 7,150
1952 6,594 2,375 5-793
1953 6,646 2 093 5,763
1954 7,576 2 739 6,581
1955 7,183 3,164 6,376
1956 7,824 2,128 6,668
1957 9,066 2,445 7,801
1958 8,866 2,167 7,540
1959 7,818 2,065 6,644
1960 9,047 2,706 7,754
1961 9,417 2,682 8,025
1962 9,305 3,066 8,013
1963 9,231 1,748 7,694
1964 7,824 2,131 6,705
1965 8,391 2,669 7,284
1966 7,558 1,867 6,744
1967 6,804 3,064 6,307
1968 10,821 2,280 9,762
1969 5,882 4,329 5,706
1970 7,510 4,317 7,173
1971 5,501 2,501 5,168
1972 4,293 2,111 4,095
1973 3,458 2,137 3,340
1974 3,114 2,337 3,041
1975 2,822 3,064 2,846
1976 2,863 1,253 2,704
1977 2,647 2,227 2,603
NA Not available.
Total
Year Strip Auger Culm Dredges surface Total
banks mining mining
1931 3,246 NA NA NA 3,246 9,938
1932 7,191 NA NA NA 7,191 10,359
1933 5,218 NA NA NA 5,218 8,052
1934 4,414 NA NA NA 4,414 8,599
1935 8,231 NA NA NA 8,231 9,097
1936 6,096 NA NA - 6,010 8,693
1937 3,574 NA NA - 3,494 9,292
1938 7,990 NA NA - 7,854 9,531
1939 4,022 NA NA - 3,953 8,510
1940 5,738 NA NA - 5,617 9,909
1941 6,689 NA NA - 6,538 8,243
1942 5,047 NA NA - 4,937 8,644
1943 4,831 NA 10,431 - 5,050 8,415
1944 5,028 NA 2,559 - 4,790 7,221
1945 3,457 NA - _ 3,283 6,6851946 3,568 NA 1,916 _ 3,453 6,603
1947 4,034 NA - _ 3,861 7,317
1948 4,636 NA 2,700 - 4,537 6,673
1949 2,441 NA - - 2,360 5,463
1950 3,295 NA 9,890 - 3,389 5,423
1951 3,094 NA - - 3,043 6,755
1952 3,278 NA 9,876 - 3,326 5,538
1953 2,316 NA - - 2,271 5,386
1954 2,853 NA - - 2,809 6,124
1955 3,045 11,983 13,721 - 3,384 6,009
1956 3,098 4,468 4,786 - 3,182 6,198
1957 2,536 7,631 - - 2,686 7,092
1958 2,365 8,803 - - 2,573 6,736
1959 2,578 - - 23,780 2,549 5,950
1960 3,130 8,317 9,207 - 3,425 6,988
1961 2,370 3,192 - - 2,362 6,994
1962 2,746 2,587 - - 2,695 6,999
1963 2,913 6,433 11,382 - 3,193 6,812
1964 1,996 2,439 - - 1,986 5,788
1965 2,394 2,521 - - 2,367 6,321
1966 3,308 6,251 - - 3,446 6,081
1967 3,120 4,387 - - 3,143 5,657
1968 3,408 11,984 - - 3,911 8,513
1969 3,794 5,901 - - 3,870 5,304
1970 3,319 6,502 - - 3,477 6,299
1971 2,341 4,766 - - 2,460 4,441
1972 2,284 3,085 - - 2,298 3,688
1973 1,664 3,462 - - 1,706 2,947
1974 1,972 6,369 - - 2,075 2,769
1975 1,987 12,383 - - 2,131 2,634
1976 1,336 5,229 - - 1,372 2,301
1977 1,364 10,689 - - 1,446 2,206
NA Not available.
Independent Mechanical
Year shops and cleaning Grand
yards plants total
1931 NA NA 9,938
1932 NA NA 10,359
1933 NA NA 8,052
1934 NA NA 8,599
1935 NA NA 9,097
1936 NA NA 8,693
1937 NA NA 9,292
1938 NA NA 9,531
1939 NA NA 8,510
1940 NA NA 9,909
1941 NA NA 8,243
1942 NA NA 8,644
1943 NA NA 8,415
1944 NA NA 7,221
1945 NA NA 6,685
1946 NA NA 6,603
1947 NA NA 7,317
1948 NA NA 6,673
1949 NA NA 5,463
1950 NA NA 5,423
1951 NA NA 6,755
1952 NA NA 5,538
1953 NA NA 5,386
1954 NA NA 6,124
1955 NA NA 6,009
1956 NA NA 6,198
1957 NA 2,183 7,026
1958 NA 2,331 6,666
1959 NA 5,242 5,939
1960 NA 2,850 6,926
1961 NA 1,520 6,910
1962 NA 4,786 6,965
1963 NA 1,535 6,730
1964 NA 3,318 5,753
1965 NA - 6,241
1966 NA 1,597 5,735
1967 NA 3,783 5,509
1968 NA 1,600 7,960
1969 NA 2,995 5,129
1970 NA 2,189 5,996
1971 NA 2,031 4,273
1972 _ 1,930 3,498
1973 2,218 2,017 2,853
1974 - 2,434 2,689
1975 - 1,854 2,526
1976 - 1,631 2,208
1977 884 1,637 2,135
NA Not available.
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