Eliminating the Risk - Coal International

The fatal accident rate among miners has dropped from a peak of more than 25 deaths per 10,000 workers in the early 1940s to less than five currently.
If the rate is plotted graphically, we can see that there have been two significant drops – one in the mid- 1940s and another in the mid-70s. But the graph also illustrates that while the overall number has continued to decline slightly in the last 30 years, the rate of improvement has slowed drastically.