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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $818 | $1,159 | $27,226 | $51,851 | $43,423 | $99,183 |
| Articulated link chain other than roller chain, of iron/steel | $411 | $5,052 | $1,083 | $6,783 | $82,252 | $357 |
| Parts of articulated link chain of iron/steel | $513 | $1,889 | $3,191 | $109 | $164 | $177 |
| Skid chain of iron/steel | $20,172 | $1,562 | | $2,433 | $278 | |
| Stud-link chain of iron/steel | $21 | | $183 | $30 | $1,331 | $4,188 |
| Welded link chain of iron/steel | | | $343 | $1,204 | $6,625 | |
| Chain, of iron/steel, n.e.s. in 73.15 | $24,079 | $5,964 | $20,592 | $17,409 | $19,530 | $48,738 |
| Parts of chains (excl. articulated link chain), of iron/steel | $7,482 | $1,285 | $1,973 | $931 | $690 | $1,016 |
| Total | $53,496 | $16,911 | $54,591 | $80,750 | $154,293 | $153,659 |
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