Commodity2005200620072008200920102011
Phenazone (antipyrin) & its derivs.$567$4$3,504$1,770$21,192$4,694$12,400
Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ...$1,983,188$1,748,169$403,928$7,695$3,521$7,205$1,026
Hydantoin & its derivs.$5,164      
Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ...$16,526$56,140$73,341$234,019$204,935$13,698$83,724
Pyridine & its salts$1,300,847$1,214,280$829,012$633,784$431,590$155,677$66
Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ...$175,861$547,325$166,096$133,505$123,021$144,848$183,637
Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ...$72,290$80,338$236,508$112,800$548$16,018$31,596
Melamine  $31,560$7,792 $40,220$596
Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ...$15,673,718$11,893,446$17,395,994$9,877,738$11,406,713$8,739,246$12,500,108
6-Hexanelactam (epsilon-caprolactam)$344,864,268$392,767,730$457,759,673$418,446,845$342,969,465$413,475,575$671,589,070
Lactams (excl. of 2933.71 & 2933.72)$1,056,290$36,120$75,132$398$1,031$3,559$1,921
Total$365,148,719$408,343,552$476,974,748$429,456,346$355,162,016$422,600,740$684,404,144