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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Phenazone (antipyrin) & its derivs. | $178 | $261 | $1,151 | $768 | $150 | $105 | $262 |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $19,329 | $3,930 | $7,518 | $186,196 | $115,794 | $23,723 | $34,268 |
| Hydantoin & its derivs. | $1,176 | $903 | $1,680 | $761 | $881 | $1,481 | $815 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $19,114 | $7,913 | $23,866 | $37,962 | $41,936 | $40,260 | $49,395 |
| Pyridine & its salts | $892 | $918 | $1,219 | $2,041 | $476 | $1,331 | $1,078 |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $200,016 | $198,875 | $258,612 | $183,691 | $174,330 | $156,637 | $219,204 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $36,968 | $20,235 | $24,427 | $120,385 | $171,537 | $875,405 | $525,598 |
| Melamine | $1,395 | $42,723 | $246,213 | $238,278 | $50,060 | $31 | $25 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $76,091 | $78,117 | $91,254 | $252,972 | $215,890 | $369,971 | $399,492 |
| 6-Hexanelactam (epsilon-caprolactam) | | | $7,712 | | | | |
| Lactams (excl. of 2933.71 & 2933.72) | $34,923 | $193,280 | $111,000 | $276,080 | $64,015 | $292,289 | $318,279 |
| Total | $390,082 | $547,155 | $774,652 | $1,299,134 | $835,069 | $1,761,233 | $1,548,416 |
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