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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | | | | $7,726 | $42,824 | $35,058 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $149 | $1,379 | $10,624 | | | | $387,785 |
| Hydantoin & its derivs. | $512 | | $1,950 | $2,488 | $5,675 | $3,463 | |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $27,357 | $2,326 | $38,537 | $4,733 | $2,599 | $5,980 | $46,213 |
| Pyridine & its salts | $7,253 | $799,934 | $12,728 | $5,355 | $432 | $7,028 | $611 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $498 | $1,873,921 | $2,449,928 | $2,211,504 | $3,327,815 | $254,845 | $4,625 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $5,809 | $185,045 | $281,977 | $437,748 | $327,352 | $258,216 | $12,955 |
| Melamine | | | | | | $5,744 | $3,218 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $128,533 | $271,874 | $247,530 | $163,237 | $284,316 | $78,384 | $174,059 |
| Lactams (excl. of 2933.71 & 2933.72) | $3,075 | | $10,304 | | $139 | | $16,997 |
| Total | $173,186 | $3,134,479 | $3,053,578 | $2,825,065 | $3,956,054 | $656,484 | $681,521 |
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