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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $57,539 | $75,909 | $339,852 | $168,311 | $59,760 | $264,624 | $311,451 |
| Nitrates of potassium | $4,417,513 | $4,204,160 | $3,007,273 | $3,413,134 | $2,815,602 | $2,465,778 | $1,604,623 |
| Nitrates other than of potassium | $3,124,817 | $2,814,867 | $1,787,142 | $1,416,194 | $1,827,998 | $2,901,685 | $2,764,917 |
| Total | $7,599,869 | $7,094,936 | $5,134,267 | $4,997,639 | $4,703,360 | $5,632,087 | $4,680,991 |
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