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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Phenazone (antipyrin) & its derivs. | $2,155 | $17,799 | $1,374,337 | | | |
| Heterocyclic comps. cont. an unfused pyrazole ring (whether or not hydrogen ... | $397,249 | $232,236 | $1,092,003 | | | $207,467 |
| Hydantoin & its derivs. | $128,354 | $115,995 | $245,596 | | | $527,467 |
| Heterocyclic comps. cont. an unfused imidazole ring (whether or not hydroge ... | $5,415,857 | $6,845,484 | $8,480,901 | | | $1,740,269 |
| Pyridine & its salts | $31,901 | $48,060 | $2,326 | | | |
| Heterocyclic comps. cont. an unfused pyridine ring (whether or not hydrogen ... | $839,160 | $551,526 | $1,900,928 | $5,016,806 | $6,013,579 | $15,010,685 |
| Heterocyclic comps. cont. a pyrimidine ring (whether or not hydrogenated)/p ... | $573,703 | $391,000 | $1,373,167 | | | $3,533,338 |
| Melamine | $49 | $7,541 | $38,118 | | | $5,976,274 |
| Heterocyclic comps. cont. an unfused triazine ring (whether or not hydrogen ... | $1,535,314 | $1,307,277 | $1,335,895 | | | $3,025,070 |
| 6-Hexanelactam (epsilon-caprolactam) | $117,777 | $125,191 | $291,982 | | | $1,966,402 |
| Lactams (excl. of 2933.71 & 2933.72) | $2,391 | $100,397 | $714,923 | | | $1,337,068 |
| Total | $9,043,910 | $9,742,506 | $16,850,176 | $5,016,806 | $6,013,579 | $33,324,040 |
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