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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Granulated slag (slag sand) from the mfr. of iron/steel | $1,603,930 | $1,678,400 | $2,033,711 | $14,669,704 | $10,209,343 | $8,532,826 | $7,389,622 |
| Total | $1,603,930 | $1,678,400 | $2,033,711 | $14,669,704 | $10,209,343 | $8,532,826 | $7,389,622 |
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