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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $20,173 | $20,258 | $71,784 | $55,572 | $95,320 | $111,452 | $135,500 |
| Nitrates of potassium | $38,085 | $32,436 | $42,481 | $354 | $65,543 | $15,791 | $78,924 |
| Nitrates other than of potassium | $7,239 | $2,854 | | $979 | $22,870 | $11,427 | $5,563 |
| Total | $65,497 | $55,548 | $114,265 | $56,905 | $183,733 | $138,670 | $219,987 |
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