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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Granulated slag (slag sand) from the mfr. of iron/steel | $350,556 | $501,758 | $1,138,649 | $1,902,950 | $2,450,992 | $2,383,196 | $2,447,024 |
| Total | $350,556 | $501,758 | $1,138,649 | $1,902,950 | $2,450,992 | $2,383,196 | $2,447,024 |
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