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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $974,293 | $1,038,080 | $1,248,238 | $2,280,721 | $2,247,643 | $2,081,896 | $2,218,625 |
| Decolourising earths & fuller's earth | $1,826,651 | $2,679,090 | $1,924,157 | $1,455,638 | $525,250 | $624,424 | $438,625 |
| Fire-clay | $73,956 | $43,979 | $63,595 | $32,386 | $4,212 | $7,197 | $67,004 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $2,743,638 | $3,376,341 | $3,233,189 | $6,073,045 | $8,158,175 | $4,489,951 | $5,262,363 |
| Andalusite, kyanite & sillimanite | $31,362 | $22,403 | $27,615 | $13,983 | $43,357 | $28,924 | |
| Mullite | $6,633 | $9,730 | $7,947 | $6,361 | $1,023 | $1,459 | $6,007 |
| Chamotte/dinas earths | $93,003 | $177,866 | $112,086 | $117,989 | $105,300 | $26,735 | $150,076 |
| Total | $5,749,536 | $7,347,489 | $6,616,827 | $9,980,123 | $11,084,960 | $7,260,586 | $8,142,700 |
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