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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Nitrites | $44,155 | $21,972 | $38,829 | $35,114 | $18,023 | $227 |
| Nitrates of potassium | $536 | $1,121 | | $54 | $160 | $95 |
| Nitrates other than of potassium | $344 | $484 | $1,358 | $25 | $12 | $1,607 |
| Total | $45,035 | $23,577 | $40,187 | $35,193 | $18,195 | $1,929 |
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