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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Sheet piling of iron/steel, whether or not drilled/punched/made from assemb ... | $1,727 | $947 | | | | | |
| Welded angles, shapes & sections of iron/steel | $39,969 | $172,726 | $852,020 | $2,251,352 | $3,218,139 | $1,617,260 | $3,575,384 |
| Total | $41,696 | $173,673 | $852,020 | $2,251,352 | $3,218,139 | $1,617,260 | $3,575,384 |
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