|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Hydantoin & its derivs. | | | | $1,334 | | |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $16,815 | | | | | |
| Pyridine & its salts | | | $398 | | | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $648 | | $8,933 | $7,162 | $1,447 | $1,327 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $41,209 | | $49,058 | | | |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $37,824 | $47,205 | $73,171 | $63,519 | $65,438 | $49,146 |
| Total | $96,496 | $47,205 | $131,560 | $72,015 | $66,885 | $50,473 |
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