Commodity2005200620072008200920102011
Phenazone (antipyrin) & its derivs.   $231   
Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ...  $2,775 $236$919 
Hydantoin & its derivs.   $36   
Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ...$1,946 $131$2,375 $4,375$1,500
Pyridine & its salts$88$132$730  $100$149
Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ...$146$6,200$23,671$32,516$3,370$16,500$15,229
Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ...$1,465$802$6,843$3,344$1,534$1,463$1,656
Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ...$54,860 $1,734$1,457 $41,203$23,164
6-Hexanelactam (epsilon-caprolactam) $212    $120
Lactams (excl. of 2933.71 & 2933.72)   $744$324  
Total$58,505$7,346$35,884$40,703$5,464$64,560$41,818