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| Commodity | 2005 | 2006 | 2007 | 2008 | 2010 |
| Iron oxides & hydroxides | $194,447 | $401,954 | $378,173 | $1,405,092 | $755,334 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $308,459 | $641,265 | $500,473 | $1,250,344 | $829,029 |
| Total | $502,906 | $1,043,219 | $878,646 | $2,655,436 | $1,584,363 |
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