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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Nitrites | $85,736 | $121,315 | $59,755 | $9,861 | $15,935 | $38,875 |
| Nitrates of potassium | $75,959 | $51,383 | $48,874 | $41,930 | $12,346 | $42,212 |
| Nitrates other than of potassium | $174,434 | $298,681 | $172,815 | $139,362 | $138,850 | $295,330 |
| Total | $336,129 | $471,379 | $281,444 | $191,153 | $167,131 | $376,417 |
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