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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $16,281 | $16,770 | $39,478 | $38,162 | $15,253 | $25,759 | $13,094 |
| Nitrates of potassium | $20,279 | $5,294 | $2,910 | $5,169 | $2,409 | $1,219 | $26,658 |
| Nitrates other than of potassium | $2,364 | $54,391 | $25,089 | $4,558 | $291 | $93,296 | $128,547 |
| Total | $38,924 | $76,455 | $67,477 | $47,889 | $17,953 | $120,274 | $168,299 |
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