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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Nitrites | $5,012 | $1,691 | $28,117 | $21,664 | $885 | $1,592 |
| Nitrates of potassium | $3,566 | $23,354 | $2,006 | $20,469 | $31,308 | $17,518 |
| Nitrates other than of potassium | $21,174 | $6,218 | $58,498 | $96,919 | $52,147 | $31,703 |
| Total | $29,752 | $31,263 | $88,621 | $139,052 | $84,340 | $50,813 |
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