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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $901,841 | $852,597 | $808,437 | $597,826 | $500,108 | $642,784 | $984,542 |
| Articulated link chain other than roller chain, of iron/steel | $625,775 | $757,342 | $1,087,462 | $1,399,115 | $235,948 | $488,154 | $854,549 |
| Parts of articulated link chain of iron/steel | $53,875 | $100,481 | $117,832 | $88,020 | $48,095 | $587,630 | $172,370 |
| Skid chain of iron/steel | $89,396 | $64,639 | $211,132 | $438,602 | $115,489 | $348,798 | $494,024 |
| Stud-link chain of iron/steel | $9,240 | $26,599 | $27,692 | $90 | $33,532 | $10,311 | $8,910 |
| Welded link chain of iron/steel | $364,112 | $481,403 | $553,055 | $951,456 | $305,199 | $912,382 | $1,069,481 |
| Chain, of iron/steel, n.e.s. in 73.15 | $378,888 | $314,260 | $281,158 | $705,527 | $237,653 | $249,502 | $806,682 |
| Parts of chains (excl. articulated link chain), of iron/steel | $181,881 | $434,429 | $235,620 | $75,419 | $41,305 | $34,079 | $102,127 |
| Total | $2,605,008 | $3,031,750 | $3,322,388 | $4,256,055 | $1,517,329 | $3,273,640 | $4,492,685 |
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