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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $2,908 | $14,501 | $30,559 | $60,108 | $14,450 | $46,715 | $148,902 |
| Nitrates of potassium | $73,737 | $83,916 | $67,960 | $14,953 | $21,813 | $137,721 | $178,600 |
| Nitrates other than of potassium | $108,496 | $42,502 | $26,749 | $140,133 | $3,286 | | $111,563 |
| Total | $185,141 | $140,919 | $125,268 | $215,194 | $39,549 | $184,436 | $439,065 |
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