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Injury Experience and Worktime Data at Nonmetal Mines
in the United States
Injuries

                      Nonfatal         All            Non-            All
Year      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 Nonfatal All Non- All Year 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 Man-Hours Nonfatal All Worked Year Fatal Disabling Disabling (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.



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