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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bentonite | $816,520 | $693,724 | $858,816 | $1,442,228 | $1,051,905 | $513,020 |
| Decolourising earths & fuller's earth | $278,857 | $248,916 | $304,984 | | | |
| Fire-clay | $225,978 | $481,711 | $537,063 | $612,065 | $142,283 | $231,050 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $3,239,190 | $2,502,267 | $2,737,633 | $6,537,010 | $6,429,121 | $6,246,676 |
| Chamotte/dinas earths | $1,176,842 | $1,709,851 | $1,387,580 | $2,304,895 | $1,973,264 | $1,863,737 |
| Total | $5,737,387 | $5,636,469 | $5,826,076 | $10,896,198 | $9,596,573 | $8,854,483 |
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