National
Institute for Occupational Safety and
Health |
Figure 6�/STRONG>
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Figure 6�/STRONG> Fatality rates at underground mining operations, by commodity and employment size of operation, 1988�97. Fatality rates are computed per 100,000 full-time workers or 200 million employee hours. (Note: There are no sand and gravel underground operations.) (Source: MSHA [1999].)