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Historical Data Tables for 1978 - 2008
(Files Updated 02/03/2010)
  Number of Operations
  Average Number of Employees
  Employee Hours Worked
  Number of Fatal Injuries and Fatal Incidence Rates (IR)
  Number of Nonfatal Days Lost (NFDL) Injuries and Incidence Rates (IR)
  Number of No Days Lost (NDL) Injuries and Incidence Rates (IR)
  Number of Injuries and Total Incidence Rates (IR)

Historical Data Tables for 1931-1977
   Injury Experience and Worktime Data