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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $212 | $54,821 | $458 | $578 | $6,036 | $1,644 | $2,360 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $8 | $711 | $14,184 | $2,209 | $249 | $578 | $876 |
| Hydantoin & its derivs. | $1,045 | $7,512 | $17 | $2,248 | $3,001 | $72,431 | $128,849 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $1,261,966 | $919,197 | $1,245,283 | $1,575,711 | $2,221,087 | $1,715,199 | $2,265,423 |
| Pyridine & its salts | $6,037 | $12,518 | $20,223 | $21,095 | $19,980 | $72,668 | $32,421 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $3,246,033 | $3,896,210 | $2,348,114 | $2,484,684 | $1,071,564 | $582,479 | $1,291,640 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $1,206,936 | $1,335,366 | $1,392,842 | $1,062,688 | $2,097,864 | $2,334,914 | $2,904,168 |
| Melamine | $18,968 | $1,457 | $1,063 | $3,063 | $330 | $129,985 | $4,653 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $187,068 | $502,767 | $296,250 | $551,477 | $425,430 | $373,449 | $585,102 |
| 6-Hexanelactam (epsilon-caprolactam) | $85,880,098 | $90,326,132 | $119,702,020 | $85,214,548 | $64,366,599 | $99,933,958 | $129,002,945 |
| Lactams (excl. of 2933.71 & 2933.72) | $52,662 | $153,380 | $292,977 | $109,761 | $99,539 | $198,451 | $452,875 |
| Total | $91,861,033 | $97,210,071 | $125,313,431 | $91,028,062 | $70,311,679 | $105,415,756 | $136,671,312 |
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