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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Nitrites | $14,126 | $27,125 | $11,653 | $32,454 | $5,643 | $184,120 |
| Nitrates of potassium | $53,254 | $5,640 | $51,468 | $2,563 | $21,614 | $22,449 |
| Nitrates other than of potassium | $68,867 | $35,387 | $559,390 | $167,834 | $36,863 | $26,113 |
| Total | $136,247 | $68,152 | $622,511 | $202,851 | $64,120 | $232,682 |
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