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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $10,029,689 | $7,298,697 | $11,060,864 | $9,872,812 | $14,331,070 | $10,783,254 | $17,698,365 |
| Towers & lattice masts of iron/steel | $20,026,023 | $31,612,231 | $36,325,322 | $51,477,258 | $33,575,375 | $27,860,008 | $58,938,377 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $3,669,453 | $4,495,997 | $5,923,376 | $8,040,409 | $5,826,692 | $4,131,272 | $3,956,238 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $21,672,321 | $29,321,357 | $43,952,884 | $41,493,218 | $44,876,352 | $34,037,746 | $32,094,590 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $110,782,347 | $168,975,184 | $242,048,712 | $277,344,306 | $180,149,966 | $195,293,490 | $255,753,132 |
| Total | $166,179,833 | $241,703,466 | $339,311,158 | $388,228,003 | $278,759,455 | $272,105,770 | $368,440,702 |
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