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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $2,721,008 | $14,887,878 | $9,401,168 | $62,649,845 | $9,911,982 | $27,245,130 | $5,829,931 |
| Towers & lattice masts of iron/steel | $9,336,177 | $5,064,514 | $19,502,490 | $61,290,387 | $40,485,956 | $19,644,865 | $23,098,659 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $1,224,473 | $2,040,205 | $3,533,781 | $6,013,950 | $6,623,279 | $14,201,250 | $5,064,451 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $1,205,857 | $1,501,093 | $2,248,082 | $10,697,160 | $7,692,910 | $8,693,728 | $12,775,289 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $115,231,690 | $32,102,335 | $58,120,658 | $321,281,169 | $306,567,256 | $298,641,961 | $246,478,732 |
| Total | $129,719,205 | $55,596,025 | $92,806,179 | $461,932,511 | $371,281,383 | $368,426,934 | $293,247,062 |
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