|
| Commodity | 2005 | 2006 | 2007 | 2008 |
| Phenazone (antipyrin) & its derivs. | | $878 | | |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $22 | | | $302 |
| Hydantoin & its derivs. | | $46 | $267 | |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $152 | | $1,173 | $2,059 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $610 | $1,126 | $177 | $932 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $521 | $856 | | $1,028 |
| Melamine | | | $57 | $420 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $26,879 | $2,538 | $211 | |
| 6-Hexanelactam (epsilon-caprolactam) | $647 | | $1,010 | $1,029 |
| Lactams (excl. of 2933.71 & 2933.72) | | | $79 | |
| Total | $28,831 | $5,444 | $2,974 | $5,770 |
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