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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $6,209,144 | $8,144,744 | $12,182,082 | $12,559,723 | $9,600,021 | $12,213,624 | $19,604,164 |
| Articulated link chain other than roller chain, of iron/steel | $3,947,785 | $8,014,087 | $6,367,998 | $9,283,239 | $5,343,240 | $7,026,371 | $8,640,537 |
| Parts of articulated link chain of iron/steel | $468,372 | $742,007 | $686,930 | $1,101,777 | $390,835 | $466,952 | $630,548 |
| Skid chain of iron/steel | $3,366,401 | $3,777,600 | $3,088,688 | $1,230,546 | $797,865 | $477,355 | $1,384,714 |
| Stud-link chain of iron/steel | $605,059 | $891,527 | $1,146,753 | $932,470 | $996,735 | $439,425 | $819,110 |
| Welded link chain of iron/steel | $1,518,480 | $1,738,201 | $2,974,184 | $3,358,059 | $3,325,767 | $3,761,904 | $3,829,512 |
| Chain, of iron/steel, n.e.s. in 73.15 | $2,153,706 | $2,519,970 | $3,352,000 | $4,979,761 | $3,046,273 | $4,088,429 | $6,839,246 |
| Parts of chains (excl. articulated link chain), of iron/steel | $888,132 | $993,474 | $1,410,744 | $1,726,003 | $1,061,368 | $1,494,179 | $1,890,606 |
| Total | $19,157,079 | $26,821,610 | $31,209,379 | $35,171,578 | $24,562,104 | $29,968,239 | $43,638,437 |
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