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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $64,427,443 | $66,120,064 | $45,887,332 | $45,078,600 | $14,330,605 | $23,051,690 | $15,649,888 |
| Towers & lattice masts of iron/steel | $1,656,680 | $3,012,155 | $3,460,740 | $5,473,050 | $632,409 | $617,883 | $75,552 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $7,987,336 | $24,865,640 | $44,831,731 | $84,944,290 | $37,631,791 | $42,365,251 | $38,925,571 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $15,099,930 | $29,603,532 | $52,636,038 | $47,127,550 | $2,609,724 | $7,053,738 | $6,793,745 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $53,410,623 | $113,187,159 | $171,291,245 | $181,113,473 | $71,815,379 | $96,158,115 | $161,062,202 |
| Total | $142,582,012 | $236,788,550 | $318,107,086 | $363,736,963 | $127,019,908 | $169,246,677 | $222,506,958 |
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