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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Anhydrous ammonia | $7,000 | $9,163 | $9,526 | $13,930 | $7,372 | $10,843 | $14,726 |
| Ammonia in aqueous solution | $29,000 | $28,338 | $56,337 | $22,685 | $94,267 | $81,078 | $64,801 |
| Total | $36,000 | $37,501 | $65,863 | $36,615 | $101,639 | $91,921 | $79,527 |
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