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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $9,360,099 | $8,649,571 | $11,395,676 | $10,091,710 | $4,070,609 | $5,065,269 | $5,021,915 |
| Articulated link chain other than roller chain, of iron/steel | $722,690 | $481,823 | $346,623 | $125,031 | $228,962 | $119,220 | $218,903 |
| Parts of articulated link chain of iron/steel | $1,155,090 | $202,543 | $244,655 | $159,060 | $422,603 | $441,676 | $44,678 |
| Skid chain of iron/steel | $83,508 | $47,365 | $872 | $17,969 | $4,161 | | $319,051 |
| Stud-link chain of iron/steel | $219,458 | $301,324 | $502,855 | $246,373 | $321,283 | $295,855 | $559,859 |
| Welded link chain of iron/steel | $89,584 | $149,282 | $124,260 | $44,758 | $79,404 | $84,616 | $94,665 |
| Chain, of iron/steel, n.e.s. in 73.15 | $2,152,302 | $2,577,439 | $3,535,107 | $3,059,530 | $2,085,635 | $3,047,010 | $3,404,679 |
| Parts of chains (excl. articulated link chain), of iron/steel | $276,343 | $247,207 | $3,081 | $47,060 | $14,874 | $30,434 | $23,737 |
| Total | $14,059,074 | $12,656,554 | $16,153,129 | $13,791,491 | $7,227,531 | $9,084,080 | $9,687,487 |
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