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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Nitrites | $1,427 | $5,010 | $28,011 | $3,126 | $16,778 | $121 | $752 |
| Nitrates of potassium | $8,008 | $10,752 | $2,099 | $15,833 | $2,292 | $5,666 | $58,781 |
| Nitrates other than of potassium | $12,963 | $25,956 | $92,536 | $66,827 | $182,926 | $51,265 | $35,034 |
| Total | $22,398 | $41,718 | $122,646 | $85,786 | $201,996 | $57,052 | $94,567 |
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