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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | | $136 | $264,160 | | $131 | $139 | $728,402 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $2,010 | $330,950 | $641,935 | $6,621 | $9,332 | $4,176 | $6,784 |
| Hydantoin & its derivs. | $92,576 | $170,703 | $205,129 | $108,246 | $60,727 | $38,415 | $28,063 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $10,450 | $25,531 | $62,443 | $183,233 | $81,100 | $38,137 | $12,490 |
| Pyridine & its salts | $30,546 | $17,383 | $18,540 | $13,550 | $13,276 | $14,893 | $14,494 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $146,484,134 | $147,284,635 | $184,570,421 | $139,942,441 | $102,071,482 | $32,221,654 | $59,714,467 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $15,987,524 | $21,856,115 | $25,828,097 | $29,429,069 | $24,989,699 | $36,311,055 | $52,647,241 |
| Melamine | $41,264 | $25,531 | $9,789 | $189,238 | $24,448 | $155,887 | $23,129 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $948,670 | $2,119,326 | $3,545,920 | $4,254,085 | $1,528,683 | $3,813,814 | $4,099,959 |
| Lactams (excl. of 2933.71 & 2933.72) | $159,027 | $167,172 | $190,000 | $294,713 | $221,613 | $243,157 | $195,978 |
| Total | $163,756,201 | $171,997,482 | $215,336,434 | $174,421,196 | $129,000,491 | $72,841,327 | $117,471,007 |
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