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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $19,741 | | $3,464 | | | | |
| Nitrates of potassium | $1,733 | $204 | | $707 | $71 | $124 | $203 |
| Nitrates other than of potassium | $1,406 | $2,813 | $1,079 | $2,740 | $385 | $23,606 | $572 |
| Total | $22,880 | $3,017 | $4,543 | $3,447 | $456 | $23,730 | $775 |
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