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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Phenazone (antipyrin) & its derivs. | $6,480 | $30,133 | $17,619 | $39,579 | $29,586 | $48,267 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $66,085 | $66,988 | $112,252 | $147,350 | $77,033 | $59,664 |
| Hydantoin & its derivs. | $128,823 | $136,062 | $136,861 | $41,102 | $12,971 | $16,932 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $243,056 | $185,885 | $194,847 | $1,812,836 | $780,363 | $941,092 |
| Pyridine & its salts | $6,902 | $10,433 | $13,591 | $39,896 | $20,384 | $37,595 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $175,109 | $278,636 | $223,899 | $437,709 | $52,233 | $236,582 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $152,768 | $330,800 | $192,105 | $228,535 | $260,812 | $375,260 |
| Melamine | $1 | $1,296 | $1,968 | $448 | $195 | |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $119,469 | $156,661 | $307,089 | $380,778 | $324,856 | $445,693 |
| Lactams (excl. of 2933.71 & 2933.72) | $18,024 | $17,038 | $18,045 | $74,369 | $80,914 | $63,342 |
| Total | $916,717 | $1,213,932 | $1,218,276 | $3,202,602 | $1,639,347 | $2,224,427 |
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