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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $373,418 | $590,959 | $1,118,077 | $1,347,359 | $592,709 | $1,081,515 | $1,571,191 |
| Decolourising earths & fuller's earth | $40,414 | $10,395 | $23,933 | $42,320 | $112,643 | $91,651 | |
| Fire-clay | $230,640 | $247,077 | $293,050 | $431,040 | $300,590 | $866,593 | $728,254 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $36,186 | $38,073 | $285,020 | $461,100 | $662,476 | $527,312 | $759,816 |
| Andalusite, kyanite & sillimanite | | $7,791 | $8,397 | $40,940 | $3,598 | | |
| Mullite | $7,447 | $1,091 | $367,407 | $130 | $11,960 | $3,154 | |
| Chamotte/dinas earths | | | $2,875 | $577,000 | $2,641 | $9,287 | $22,980 |
| Total | $688,105 | $895,386 | $2,098,759 | $2,899,889 | $1,686,617 | $2,579,512 | $3,082,241 |
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