Commodity2005200620072008200920102011
Oxalic acid, its salts & esters$69$5$250$198$8$141 
Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxya ...$17,269$1,835$15,961$8,723$8,793$19,872$19,655
Phthalic anhydride  $623  $218 
Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxy ...$97$1,072$779$1,707$10$9$11,686
Total$17,435$2,912$17,613$10,628$8,811$20,240$31,341