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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bentonite | $265,299 | $245,311 | $624,590 | $309,185 | $262,019 | $562,017 |
| Decolourising earths & fuller's earth | $270,607 | $319,923 | $387,101 | $377,983 | $472,266 | $344,812 |
| Fire-clay | $31 | | $7,134 | $4,059 | $23,858 | $31,108 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $28,838 | $4,454 | $24,036 | $64,820 | $63,817 | $47,430 |
| Chamotte/dinas earths | | $31,342 | $901 | $34,434 | $24,428 | $14,531 |
| Total | $564,775 | $601,030 | $1,043,762 | $790,481 | $846,388 | $999,898 |
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