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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | $1,104 | $1,940 | $2,353 | $3,215 | $1,232 | $13,740 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | | | | $592 | $417 | | |
| Hydantoin & its derivs. | | $143 | $1,994 | $36 | | $50 | $16 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $2,822,693 | $1,468,574 | $1,076,396 | $5,560,819 | $843,341 | $2,565,894 | $7,546,969 |
| Pyridine & its salts | | | $1,010 | $790 | $176 | $8,368 | $1,066 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $949,751 | $2,451,161 | $6,039,404 | $10,017,211 | $4,137,688 | $9,978,042 | $17,718,074 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $142,721 | $141,635 | $590,178 | $846,744 | $338,242 | $1,156,878 | $1,226,749 |
| Melamine | $1,834 | $1,065 | $129,287 | | $516,527 | $16,947 | $38,638 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $196,978 | $28,433 | $43,902 | $93,049 | $163,381 | $148,571 | $43,047 |
| 6-Hexanelactam (epsilon-caprolactam) | $2,073 | $4,813,807 | $13,612 | | | $10,408 | $11,953,632 |
| Lactams (excl. of 2933.71 & 2933.72) | $7,915,041 | $18,826,031 | $10,535,476 | $26,739,325 | $24,357,547 | $16,202,764 | $8,307,353 |
| Total | $12,031,091 | $27,731,953 | $18,433,199 | $43,260,919 | $30,360,534 | $30,089,154 | $46,849,284 |
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