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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $1,642 | $2,600 | $5,814 | $12,989 | $25,245 | $10,641 | $9,458 |
| Nitrates of potassium | $288 | $17,838 | $24,632 | $30,214 | $37,598 | $27,361 | $79,249 |
| Nitrates other than of potassium | $11,740 | $12,597 | $7,398 | $30,430 | $27,294 | $10,259 | $24,470 |
| Total | $13,670 | $33,035 | $37,844 | $73,633 | $90,137 | $48,261 | $113,177 |
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