|
| Sub-Chapter | 2005 | 2006 | 2010 |
| Hydrogen, rare gases and other non-metals. | $50,985 | $28,249 | |
| Hydrogen chloride (hydrochloric acid); | | | $4,257 |
| Other inorganic acids and oxygen compounds | $1,467 | $693 | |
| Ammonia, anhydrous or in aqueous solution. | | $24,436 | |
| Lead oxides; red lead and orange lead. | | | $180 |
| Total | $52,452 | $53,378 | $4,437 |
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