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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Granulated slag (slag sand) from the mfr. of iron/steel | $478,293 | $447,845 | $1,029,179 | $2,632,484 | $1,555,606 | $2,797,881 | $1,683,980 |
| Total | $478,293 | $447,845 | $1,029,179 | $2,632,484 | $1,555,606 | $2,797,881 | $1,683,980 |
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