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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $14,379,157 | $5,261,905 | $2,407,300 | $8,326,751 | $7,290,768 | $5,120,404 | $3,763,877 |
| Towers & lattice masts of iron/steel | $19,133,455 | $11,771,003 | $14,752,380 | $32,903,991 | $28,729,868 | $49,333,685 | $37,111,460 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $46,153,494 | $54,066,494 | $58,893,731 | $67,639,733 | $54,458,652 | $51,314,652 | $47,189,141 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $96,262,357 | $114,281,726 | $138,367,567 | $146,740,063 | $80,477,990 | $101,695,786 | $98,987,786 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $175,479,355 | $196,028,355 | $243,961,338 | $287,577,672 | $205,976,564 | $363,863,859 | $266,348,031 |
| Total | $351,407,818 | $381,409,483 | $458,382,316 | $543,188,210 | $376,933,842 | $571,328,386 | $453,400,295 |
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