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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $33,573 | $56,039 | $32,355 | $32,188 | $26,940 | $54,790 | $67,789 |
| Nitrates of potassium | $24,358 | $9,606 | $25,088 | $34,372 | $58,957 | $327,564 | $146,687 |
| Nitrates other than of potassium | $20,211 | $28,842 | $13,843 | $21,731 | $15,160 | $186,634 | $36,926 |
| Total | $78,142 | $94,487 | $71,286 | $88,291 | $101,057 | $568,988 | $251,402 |
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