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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $188,121 | $515,266 | $1,353,647 | $815,228 | $1,202,778 | $669,221 | $792,891 |
| Articulated link chain other than roller chain, of iron/steel | $762,745 | $935,343 | $417,036 | $126,774 | $144,510 | $161,946 | $285,375 |
| Parts of articulated link chain of iron/steel | $468,546 | $578,610 | $318,942 | $871,966 | $530,993 | $318,371 | $659,560 |
| Skid chain of iron/steel | | | $6,175 | $24,932 | $6,574 | | |
| Stud-link chain of iron/steel | $14,230 | | $20,278 | $27,848 | $1,003 | | $26,012 |
| Welded link chain of iron/steel | $619,056 | $790,336 | $1,032,136 | $1,443,662 | $441,528 | $91,860 | $301,851 |
| Chain, of iron/steel, n.e.s. in 73.15 | $11,669 | $139,062 | $112,791 | $267,361 | $1,121,686 | $31,545 | $202,152 |
| Parts of chains (excl. articulated link chain), of iron/steel | $106,065 | $325,225 | $273,652 | $455,347 | $299,056 | $89,018 | $117,148 |
| Total | $2,170,432 | $3,283,842 | $3,534,657 | $4,033,118 | $3,748,128 | $1,361,961 | $2,384,989 |
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