Following is a list of BHP Billiton's production figures for key commodities in its fiscal first quarter ended September 30.    
        
                         Q1        Q4        Q1       
                       2012/13    2011/12    2011/12    
Alumina ('000t)          1,170     1,039      1,060       
Aluminium ('000t)         270         248       315         
Coal met  ('000t)        8,938      8,109     9,291       
Coal energy('000t)      19,607      18,484    18,460      
Copper ('000t)           273.9      312.5     220.3       
Iron ore ('000t)         39,772     40,891    39,572      
Nickel ('000t)           37.0        42.7     35.1        

Source: BHP Billiton