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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $3,553 | $2,834 | $5,814 | $7,716 | $2,059 | $1,913 | $3,387 |
| Nitrates of potassium | $1,226 | $18,850 | $551 | $31,669 | $39,716 | $18,372 | $15,903 |
| Nitrates other than of potassium | $68,655 | $65,553 | $26,421 | $66,274 | $71,947 | $33,123 | $7,168 |
| Total | $73,434 | $87,237 | $32,786 | $105,659 | $113,722 | $53,408 | $26,458 |
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