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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Anhydrous ammonia | $5,051 | $17,484 | $10,359 | $12,997 | $39,081 | $959 | $31,319 |
| Ammonia in aqueous solution | $20,747 | $27,758 | $12,883 | $49,505 | $30,832 | $24,684 | $11,744 |
| Total | $25,798 | $45,242 | $23,242 | $62,502 | $69,913 | $25,643 | $43,063 |
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