|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $6,535 | | | | $4,739 | $77 | $4,205 |
| Articulated link chain other than roller chain, of iron/steel | $926 | | | $16,835 | $1,197 | $10,806 | $12,864 |
| Parts of articulated link chain of iron/steel | | | | | $801 | | |
| Skid chain of iron/steel | | | | | | $5,019 | |
| Stud-link chain of iron/steel | | | $14,593 | $1,399 | | $2,713 | $85 |
| Welded link chain of iron/steel | | | $4,875 | | | | |
| Chain, of iron/steel, n.e.s. in 73.15 | | $7,351 | $13,785 | $5,835 | | | $20,621 |
| Parts of chains (excl. articulated link chain), of iron/steel | | | | $9,468 | $161,077 | $15,678 | $105 |
| Total | $7,461 | $7,351 | $33,253 | $33,537 | $167,814 | $34,293 | $37,880 |
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