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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $1,614,914 | $1,454,520 | $1,987,659 | $1,935,705 | $1,675,142 | $1,565,348 | $2,844,367 |
| Articulated link chain other than roller chain, of iron/steel | $3,456,020 | $3,084,280 | $2,567,335 | $2,434,042 | $1,454,023 | $1,491,908 | $1,721,495 |
| Parts of articulated link chain of iron/steel | $654,788 | $762,943 | $770,231 | $1,496,291 | $460,719 | $273,460 | $166,013 |
| Skid chain of iron/steel | $17,328 | $26,737 | $18,875 | $2,921 | $533 | $47,936 | $123,186 |
| Stud-link chain of iron/steel | $123,164 | $43,954 | $82,209 | $309,353 | $295,572 | $56,401 | $165,134 |
| Welded link chain of iron/steel | $1,156,458 | $776,927 | $859,470 | $775,152 | $617,710 | $673,519 | $832,309 |
| Chain, of iron/steel, n.e.s. in 73.15 | $1,071,806 | $1,793,604 | $1,163,612 | $842,192 | $855,423 | $677,954 | $724,564 |
| Parts of chains (excl. articulated link chain), of iron/steel | $804,877 | $1,163,723 | $798,487 | $692,790 | $232,133 | $410,266 | $370,497 |
| Total | $8,899,355 | $9,106,688 | $8,247,878 | $8,488,446 | $5,591,255 | $5,196,792 | $6,947,565 |
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