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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Granulated slag (slag sand) from the mfr. of iron/steel | $1,357,518 | $2,089,559 | $2,845,701 | $3,064,596 | $1,456,546 | $365,334 | $83,449 |
| Total | $1,357,518 | $2,089,559 | $2,845,701 | $3,064,596 | $1,456,546 | $365,334 | $83,449 |
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