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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sheet piling of iron/steel, whether or not drilled/punched/made from assemb ... | $12,187 | $20,593 | | $3,840 | $11,083 | $12,052 |
| Welded angles, shapes & sections of iron/steel | $15,303 | $89,150 | $161,086 | $30,680 | $2,200 | $44,645 |
| Total | $27,490 | $109,743 | $161,086 | $34,520 | $13,283 | $56,697 |
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