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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Anhydrous ammonia | $22,198 | $18,624 | $9,007 | $26,261 | $17,193 | $20,043 | $22,822 |
| Ammonia in aqueous solution | $47,182 | $28,968 | $21,594 | $14,072 | $28,714 | $27,704 | $15,037 |
| Total | $69,380 | $47,592 | $30,601 | $40,333 | $45,907 | $47,747 | $37,859 |
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