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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $1,220,521 | $908,535 | $2,444,309 | $3,317,448 | $512,251 | $2,009,405 | $9,435,095 |
| Towers & lattice masts of iron/steel | $67,306,245 | $100,179,401 | $171,141,326 | $253,421,412 | $200,205,459 | $144,082,411 | $223,271,388 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $2,304,438 | $4,319,511 | $2,959,318 | $5,644,899 | $3,435,242 | $3,136,823 | $6,520,295 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $31,672,878 | $31,182,559 | $44,160,606 | $114,503,331 | $53,469,920 | $67,361,100 | $78,352,911 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $136,907,344 | $162,615,600 | $172,970,217 | $339,274,032 | $199,904,725 | $233,348,624 | $279,599,211 |
| Total | $239,411,426 | $299,205,606 | $393,675,776 | $716,161,122 | $457,527,597 | $449,938,363 | $597,178,900 |
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