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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $8,295,569 | $8,078,281 | $9,427,530 | $17,000,813 | $14,682,012 | $17,977,753 | $22,487,481 |
| Decolourising earths & fuller's earth | $1,625,111 | $996,712 | $6,129,355 | $9,362,020 | $7,753,278 | | |
| Fire-clay | $304,601 | $313,946 | $958,968 | $1,541,365 | $1,511,205 | $3,262,205 | $4,486,734 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $2,052,416 | $4,493,027 | | | | $11,562,136 | $23,164,605 |
| Andalusite, kyanite & sillimanite | $421,562 | $509,747 | $490,741 | $1,058,998 | $205,930 | $701,124 | $870,881 |
| Mullite | $480,806 | $504,802 | $571,352 | $983,082 | $1,376,373 | $2,070,557 | $1,518,946 |
| Chamotte/dinas earths | $1,218,615 | $1,482,487 | $1,560,287 | $1,546,261 | $1,369,109 | $1,609,939 | $1,138,846 |
| Total | $14,398,680 | $16,379,002 | $19,138,233 | $31,492,539 | $26,897,907 | $37,183,714 | $53,667,493 |
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