Commodity20052006200720082009
Commercial ammonium carbonate & oth. ammonium carbonates$50$255   
Disodium carbonate$197$1,183 $500$2,240
Sodium hydrogencarbonate (sodium bicarbonate)$424    
Potassium carbonates  $200  
Calcium carbonate $600$1,440  
Barium carbonate  $68  
Total$671$2,038$1,708$500$2,240