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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $2,482,194 | $2,846,050 | $3,327,122 | $3,079,869 | $4,385,876 | $3,973,172 | $6,224,436 |
| Articulated link chain other than roller chain, of iron/steel | $1,180,830 | $1,107,637 | $1,353,101 | $1,827,278 | $1,537,361 | $1,358,361 | $1,555,027 |
| Parts of articulated link chain of iron/steel | $850,013 | $57,539 | $252,146 | $256,417 | $126,108 | $174,446 | $200,907 |
| Skid chain of iron/steel | $10,268 | $30,808 | $8,691 | $12,773 | $8,306 | $5,574 | $4,610 |
| Stud-link chain of iron/steel | $34,362 | $68,422 | $41,328 | $67,104 | $52,278 | $55,518 | $48,083 |
| Welded link chain of iron/steel | $17,073 | $25,275 | $90,286 | $42,672 | $57,312 | $37,829 | $52,177 |
| Chain, of iron/steel, n.e.s. in 73.15 | $383,165 | $265,763 | $506,595 | $828,627 | $936,534 | $270,845 | $366,576 |
| Parts of chains (excl. articulated link chain), of iron/steel | $53,440 | $52,273 | $462,563 | $350,175 | $168,116 | $64,363 | $106,551 |
| Total | $5,011,345 | $4,453,767 | $6,041,832 | $6,464,915 | $7,271,891 | $5,940,108 | $8,558,367 |
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