Commodity200520062007200820092010
Urea, whether or not in aqueous solution   $22,498 $380
Double salts & mixts. of ammonium sulphate & ammonium nitrate    $1,234 
Ammonium nitrate, whether or not in aqueous solution $21,700$27,722$10,800$16,709 
Double salts & mixts. of calcium nitrate & ammonium nitrate  $590   
Mixtures of urea & ammonium nitrate in aqueous/ammoniacal solution    $329 
Nitrogenous min./chem. fertilisers (excl. of 3102.10-3102.80), incl. mixts. ...$22,867   $1,598 
Total$22,867$21,700$28,312$33,298$19,870$380