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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $288,244 | $202,623 | $297,433 | $464,259 | $4,888,557 | $538,723 | $662,037 |
| Towers & lattice masts of iron/steel | $129,040,390 | $84,273,689 | $187,534,887 | $876,483,535 | $830,969,969 | $536,974,167 | $1,011,977,181 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $15,076,965 | $15,185,189 | $16,314,375 | $18,161,311 | $17,661,057 | $16,542,191 | $15,642,457 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $18,337,890 | $13,429,625 | $21,759,794 | $16,232,441 | $12,756,954 | $13,827,197 | $19,056,520 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $294,268,935 | $358,274,941 | $436,626,532 | $602,112,519 | $465,749,269 | $438,513,475 | $533,134,418 |
| Total | $457,012,424 | $471,366,067 | $662,533,021 | $1,513,454,065 | $1,332,025,806 | $1,006,395,753 | $1,580,472,613 |
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