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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $2,092 | $1,461 | $8,978 | $19,379 | $16,961 | $21,713 | $15,461 |
| Nitrates of potassium | $76 | $49 | $6,363 | $18,123 | $163,275 | $88,233 | $1,674 |
| Nitrates other than of potassium | $5,073 | $5,867 | $5,716 | $18,403 | $6,947 | $10,493 | $118,532 |
| Total | $7,241 | $7,377 | $21,057 | $55,905 | $187,183 | $120,439 | $135,667 |
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