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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $18,562,378 | $8,121,136 | $27,526,551 | $10,731,353 | $6,057,311 | $113,037,322 | $7,820,699 |
| Towers & lattice masts of iron/steel | $18,033,711 | $30,949,265 | $56,181,550 | $43,019,376 | $31,879,602 | $29,218,796 | $22,895,808 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $9,852,741 | $15,415,424 | $19,306,127 | $21,691,263 | $21,670,532 | $25,985,902 | $27,629,004 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $14,720,642 | $24,647,838 | $16,772,552 | $20,305,315 | $9,650,362 | $5,792,752 | $13,627,443 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $141,472,386 | $174,087,470 | $226,238,119 | $612,056,396 | $304,416,781 | $270,192,061 | $423,113,372 |
| Total | $202,641,858 | $253,221,133 | $346,024,899 | $707,803,703 | $373,674,588 | $444,226,833 | $495,086,326 |
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