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| Chapter | 2005 | 2006 | 2007 |
| Salt; sulfur; earths and stone; plastering materials | $11,233,465 | $15,642,266 | $25,020,112 |
| Ores, slag and ash | $48,400 | $30,112 | $52,174 |
| Mineral fuels, mineral oils and products of their distillation | $13,147,473 | $12,112,169 | $17,993,871 |
| Total | $24,429,338 | $27,784,547 | $43,066,157 |
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