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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $98,556,697 | $132,595,466 | $158,358,524 | $161,585,699 | $100,307,196 | $143,605,017 | $167,309,086 |
| Decolourising earths & fuller's earth | $13,630,217 | $16,525,392 | | | | | |
| Fire-clay | $34,495,963 | $38,153,819 | $47,839,362 | $49,880,186 | $43,183,370 | $61,989,320 | $62,078,004 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $78,918,150 | $88,863,045 | $106,915,639 | $121,582,777 | $101,187,939 | $163,334,858 | $113,021,693 |
| Andalusite, kyanite & sillimanite | $6,971,095 | $7,527,967 | $8,647,093 | $10,444,992 | $7,542,550 | $11,273,358 | $11,588,967 |
| Mullite | $38,013,537 | $46,124,935 | $34,980,151 | $5,033,585 | $3,726,582 | $8,209,580 | $7,082,760 |
| Chamotte/dinas earths | $28,929 | $161,563 | $163,768 | $320,632 | $363,530 | $386,106 | $1,035,995 |
| Total | $270,614,588 | $329,952,187 | $356,904,537 | $348,847,871 | $256,311,167 | $388,798,239 | $362,116,505 |
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