Commodity2005200620072008200920102011
Oxalic acid, its salts & esters $1,688  $1,014 $1,000
Maleic anhydride  $1,048  $124 
Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxya ... $1,404 $201$591 $1,000
Cyclanic/cyclenic/cycloterpenic polycarboxylic acids, their anhydrides, hal ...      $12,000
Dibutyl orthophthalates$74  $5,144$13,022  
Dioctyl orthophthalates $797$1,282    
Phthalic anhydride $635     
Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxy ...$72$905$3,750 $942$328$1,000
Total$146$5,429$6,080$5,345$15,569$452$15,000