|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $4,204 | $348 | $8,370 | $20,451 | $15,171 | $540 | |
| Articulated link chain other than roller chain, of iron/steel | $4,179 | $18,293 | $7,405 | | $10,263 | $7,791 | |
| Parts of articulated link chain of iron/steel | | | $1,125 | | | $180 | $224 |
| Chain, of iron/steel, n.e.s. in 73.15 | | | | | | $180 | $480 |
| Parts of chains (excl. articulated link chain), of iron/steel | | $1,563 | | | | | |
| Total | $8,383 | $20,204 | $16,900 | $20,451 | $25,434 | $8,691 | $704 |
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