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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | | | | | $13,747 | $83,620 | $82,115 |
| Articulated link chain other than roller chain, of iron/steel | | | | | $3,057 | $103,259 | $55,352 |
| Parts of articulated link chain of iron/steel | | | | | | $3,944 | $603 |
| Skid chain of iron/steel | $26,731 | $4,895 | $2,104 | $1,446 | $1,853 | $5,553 | $1,711 |
| Stud-link chain of iron/steel | | | | | $12,606 | $972 | $30,584 |
| Welded link chain of iron/steel | | | | | | $17,518 | $3,817 |
| Chain, of iron/steel, n.e.s. in 73.15 | | | | | $486 | $54,964 | $24,685 |
| Parts of chains (excl. articulated link chain), of iron/steel | $1,418 | $4,650 | $5,734 | $982 | $3,555 | $3,684 | $22,961 |
| Total | $28,149 | $9,545 | $7,838 | $2,428 | $35,304 | $273,514 | $221,828 |
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