|
| Commodity | 2006 | 2007 | 2008 | 2010 |
| Hydantoin & its derivs. | | $110 | | |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | | $4,156 | $5,237 | $5,038 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | | | | $1,335 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $113,939 | $111,279 | $141,182 | $322,202 |
| Total | $113,939 | $115,545 | $146,419 | $328,575 |
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