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But a spy reported that the dictator had planted mines on each of the roads . By decreasing the frequency of oil changes , the utility reported it saved approximately $ 20,000 in oil purchase and disposal costs . This is the 15th fatal accident reported in calendar year 2002 for the coal mining industry . Despite these proposed advantages and the excellent record reported in the few available studies , widespread acceptance of this approach is lacking . The puzzle is solved nicely with the new record reported by Moran et al , which shows Arctic ice developed much earlier than previous developed . This is the 16th fatal accident reported in calendar year 2002 for the coal mining industry . The percentages of overall violent crime , rape and sexual assault , simple assault , overall property crime , and property theft reported to the police increased significantly . This is the 6th fatal accident reported in calendar year 2002 for the coal mining industry . This is the 13th fatal accident reported in calendar year 2002 for the coal mining industry .