UNITED STATES DOLLAR
    2016   2015 2014  
2. COST OF SALES          
  Salaries and wages (409.5)   (389.6) (448.1)  
  Consumable stores (353.9)   (389.2) (441.2)  
  Utilities (175.1)   (167.9) (199.2)  
  Mine contractors (318.2)   (294.9) (351.0)  
  Other (176.3)   (189.7) (245.4)  
  Operating costs (1,433.0)   (1,431.3) (1,684.9)  
  Gold inventory change 45.5   (24.9) 7.2  
  Operating costs including gold inventory change (1,387.5)   (1,456.2) (1,677.7)  
  Amortisation and depreciation (679.2)   (609.9) (656.7)  
  Total cost of sales (2,066.7)   (2,066.1) (2,334.4)