|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $9 | | $2,381 | | | $31,504 | $83,035 |
| Articulated link chain other than roller chain, of iron/steel | $6,407 | $10,212 | $5,176 | $849 | $867 | $73,810 | $2,712 |
| Parts of articulated link chain of iron/steel | | $79 | | | | | |
| Skid chain of iron/steel | $30 | | | | | | |
| Welded link chain of iron/steel | | | | | $65 | | |
| Chain, of iron/steel, n.e.s. in 73.15 | $12,460 | $542 | $11,294 | $952 | $2,336 | $48 | $872 |
| Parts of chains (excl. articulated link chain), of iron/steel | $69 | $80 | $35 | $1,543 | | | |
| Total | $18,975 | $10,913 | $18,886 | $3,344 | $3,268 | $105,362 | $86,619 |
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