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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $183,532,945 | $205,763,801 | $249,301,701 | $294,670,294 | $221,981,170 | $309,850,087 | $347,202,281 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $1,667,947 | $1,857,120 | $2,394,964 | $1,939,544 | $1,556,054 | $2,040,322 | $1,985,248 |
| Total | $185,200,892 | $207,620,921 | $251,696,665 | $296,609,838 | $223,537,224 | $311,890,409 | $349,187,529 |
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