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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Nitrites | $147,309 | $215,593 | $257,716 | $228,342 | $190,450 | $209,531 |
| Nitrates of potassium | $671,624 | $825,828 | $1,045,619 | $1,102,600 | $587,601 | $667,980 |
| Nitrates other than of potassium | $631,818 | $1,268,418 | $1,090,536 | $2,580,691 | $2,145,048 | $3,529,051 |
| Total | $1,450,751 | $2,309,839 | $2,393,871 | $3,911,633 | $2,923,099 | $4,406,562 |
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