Commodity2005200620072008200920102011
Phenazone (antipyrin) & its derivs.$31,467$2,880 $3,280 $24,423$34,855
Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ...   $212 $1,029 
Hydantoin & its derivs.     $493$1,931
Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ...$2,223    $78,641$60,725
Pyridine & its salts     $2,250 
Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ...$8,008$23,915$195,402$5,260$25,217 $88,654
Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ...$7,018$2,456$60$4,987$5,680 $7,080
Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ...   $2,791$5,998$7,613$10,434
Lactams (excl. of 2933.71 & 2933.72)      $89
Total$48,716$29,251$195,462$16,530$36,895$114,449$203,768