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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Sheet piling of iron/steel, whether or not drilled/punched/made from assemb ... | $1,860,926 | $3,387,800 | $2,872,229 | $4,178,606 |
| Welded angles, shapes & sections of iron/steel | $811,971 | $1,693,240 | $2,081,629 | $2,327,461 |
| Total | $2,672,897 | $5,081,040 | $4,953,858 | $6,506,067 |
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