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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bentonite | $19,058,136 | $18,275,356 | $23,894,131 | $24,561,741 | $14,263,761 | $19,740,853 | $20,980,535 |
| Decolourising earths & fuller's earth | $1,749,517 | $1,663,884 | | | | | |
| Fire-clay | $77,875,530 | $52,075,621 | $64,514,160 | $55,591,153 | $26,847,195 | $42,316,855 | $30,545,915 |
| Clays other than expanded clays of 68.06 (excl. of 2507.00 & 2508.10-2508.3 ... | $86,118,071 | $99,983,770 | $120,918,711 | $145,650,045 | $78,890,270 | $100,217,662 | $131,507,341 |
| Andalusite, kyanite & sillimanite | $7,025,296 | $6,470,408 | $6,248,860 | $7,779,472 | $5,229,175 | $6,217,162 | $8,521,488 |
| Mullite | $4,723,356 | $5,288,004 | $6,641,977 | $8,213,813 | $5,338,341 | $9,859,975 | $10,354,662 |
| Chamotte/dinas earths | $14,930,916 | $15,574,705 | $19,053,982 | $16,444,073 | $11,035,496 | $11,615,560 | $12,361,774 |
| Total | $211,480,822 | $199,331,748 | $241,271,821 | $258,240,297 | $141,604,238 | $189,968,067 | $214,271,715 |
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