|
| Sub-Chapter | 2005 | 2006 | 2008 |
| Salt (including table salt) | $13,796 | $15,558 | $25,204 |
| Chalk. | $294 | $86 | $10,117 |
| Limestone flux; limestone | | $75 | |
| Portland cement, aluminous cement, slag cement | $1,761 | $5,267 | $24,222 |
| Asbestos. | $8,533 | $9,526 | $32,521 |
| Total | $24,384 | $30,512 | $92,064 |
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