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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $2,197,441 | $1,397,568 | $1,803,482 | $3,134,458 | $2,763,466 | $2,080,748 | $2,852,640 |
| Articulated link chain other than roller chain, of iron/steel | $2,132,225 | $2,238,427 | $2,152,958 | $2,227,225 | $1,912,872 | $1,848,850 | $2,668,142 |
| Parts of articulated link chain of iron/steel | $502,390 | $284,454 | $594,695 | $839,829 | $4,136,288 | $431,851 | $394,821 |
| Skid chain of iron/steel | $114,071 | $389,249 | $2,538,331 | $718,150 | $317,539 | $563,149 | $60,220 |
| Stud-link chain of iron/steel | $24,039 | $14,417 | $45,120 | $296,697 | $155,392 | $43,844 | $138,844 |
| Welded link chain of iron/steel | $370,991 | $262,332 | $602,976 | $843,713 | $517,575 | $523,709 | $345,032 |
| Chain, of iron/steel, n.e.s. in 73.15 | $7,315,949 | $2,445,747 | $1,925,773 | $7,243,808 | $9,143,329 | $5,147,866 | $4,051,968 |
| Parts of chains (excl. articulated link chain), of iron/steel | $719,047 | $698,599 | $791,861 | $1,026,046 | $1,593,344 | $3,204,748 | $1,515,644 |
| Total | $13,376,153 | $7,730,793 | $10,455,196 | $16,329,926 | $20,539,805 | $13,844,765 | $12,027,311 |
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