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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $17,199 | $151,885 | $1,209 | $64,106 | $161 | $276 | $148 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $10,713 | $7,272 | | $2,938 | $3,974 | $11,176 | $30,440 |
| Hydantoin & its derivs. | $3,584 | $7,847 | $1,711 | | $3,791 | | $4,073 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $303,188 | $190,454 | $188,153 | $562,759 | $152,708 | $560,483 | $154,843 |
| Pyridine & its salts | | $2,475 | | $243 | $109 | $469 | $5,431 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $2,884 | $10,317 | $22,760 | $13,466 | $12,703 | $26,817 | $102,244 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $678,233 | $684,068 | $764,556 | $947,341 | $454,630 | $1,042,995 | $338,934 |
| Melamine | | | $1,158 | | | | $337 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $49,132 | $134,528 | $158,957 | $465,891 | $969,333 | $503,431 | $110,851 |
| 6-Hexanelactam (epsilon-caprolactam) | | | | $107 | | | |
| Lactams (excl. of 2933.71 & 2933.72) | $9,225 | $12,429 | $4,940 | | | | |
| Total | $1,074,158 | $1,201,275 | $1,143,444 | $2,056,851 | $1,597,409 | $2,145,647 | $747,301 |
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