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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $211,866 | $298,998 | $439,426 | $1,040,807 | $16,281,318 | $1,517,327 | $4,725,504 |
| Towers & lattice masts of iron/steel | $339,257 | $358,434 | $409,261 | $1,289,026 | $7,532,448 | $4,183,104 | $4,300,887 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $4,117,395 | $2,017,750 | $4,191,578 | $5,197,293 | $4,202,482 | $11,596,533 | $12,586,035 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $1,580,178 | $803,408 | $2,336,445 | $10,670,490 | $5,681,811 | $12,889,452 | $12,934,419 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $23,163,347 | $34,046,671 | $41,667,994 | $111,299,072 | $139,348,839 | $76,212,363 | $81,990,250 |
| Total | $29,412,043 | $37,525,261 | $49,044,704 | $129,496,688 | $173,046,898 | $106,398,779 | $116,537,095 |
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