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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bridges & bridge-sections of iron/steel | $1,916,000 | $3,082,000 | $9,581,000 | $9,856,000 | $9,645,000 | $10,690,000 | $20,342,000 |
| Towers & lattice masts of iron/steel | $4,312,000 | $2,897,000 | $7,307,000 | $263,000 | $168,000 | $1,914,000 | $2,547,000 |
| Doors, windows & their frames, & thresholds for doors, of iron/steel | $6,219,000 | $7,774,000 | $6,922,000 | $6,741,000 | $6,041,000 | $7,304,000 | $10,114,000 |
| Equipment for scaffolding/shuttering/propping/pitpropping of iron/steel | $36,229,000 | $52,041,000 | $74,826,000 | $69,868,000 | $39,361,000 | $45,052,000 | $66,697,000 |
| Structures...& parts of structures...of iron/steel (excl. of 7308.10-7308.4 ... | $134,894,000 | $191,494,000 | $273,499,000 | $371,492,000 | $256,015,000 | $225,206,000 | $250,828,000 |
| Total | $183,570,000 | $257,288,000 | $372,135,000 | $458,220,000 | $311,230,000 | $290,166,000 | $350,528,000 |
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