Commodity20052006200720082010
Phenazone (antipyrin) & its derivs.$221,258$20,742 $207,624$16,805
Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ...$706,693$545,066$692,497$721,398$612,093
Hydantoin & its derivs. $17,060  $14,367
Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ...$2,252,320$1,547,738$1,839,305$3,030,942$2,472,346
Pyridine & its salts$242,058$46,110  $129,891
Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ...$657,914$631,703$181,928$2,946,026$2,055,052
Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ...$910,675$289,404$510,950$1,076,866$1,028,842
Melamine   $616,579$233,591
Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ...$190,944$172,286$196,016$457,311$437,018
6-Hexanelactam (epsilon-caprolactam)$104,845$123,681$57,644$66,133$125,601
Lactams (excl. of 2933.71 & 2933.72)$326,665$401,052$354,900$529,097$288,296
Total$5,613,372$3,794,842$3,833,240$9,651,976$7,413,902