Commodity200520062010
Oxalic acid, its salts & esters $834$857
Dibutyl orthophthalates$445$938 
Dioctyl orthophthalates$3,174$4,135$2,232
Esters of orthophthalic acid, other than dibutyl/dioctyl/dionyl/didecyl ort ...  $2,661
Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxy ...  $314
Total$3,619$5,907$6,064