|
| Sub-Chapter | 2005 | 2006 |
| Acyclic hydrocarbons. | $374 | $142 |
| Halogenated derivatives of hydrocarbons. | | $2,516 |
| Acyclic alcohols and their derivatives | | $221 |
| Epoxides, epoxyalcohols, epoxyphenols and epoxyethers | $607 | $2,674 |
| Aldehydes, whether or not with other oxygen function | | $173 |
| Ketones and quinones | | $90 |
| Quaternary ammonium salts and hydroxides | | $88 |
| Carboxyimide-function compounds | $55 | |
| Heterocyclic compounds with nitrogen hetero-atom(s) only. | $2,287 | $883 |
| Nucleic acids and their salts | $3,462 | |
| Provitamins and vitamins, natural or reproduced by synthesis | $107 | |
| Total | $6,892 | $6,787 |
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