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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $242 | $135 | $2,365 | $9,085 | $206 | $500 | $8,084 |
| Articulated link chain other than roller chain, of iron/steel | $4,835 | $88,013 | $54,618 | $799,984 | $1,151,207 | $29,076 | $35,048 |
| Parts of articulated link chain of iron/steel | | $1,749 | $5,778 | $33,292 | $23,423 | $7,858 | $2,055 |
| Skid chain of iron/steel | | | | $20 | $3,434 | $165 | |
| Stud-link chain of iron/steel | $16 | | | | | $147 | |
| Welded link chain of iron/steel | $15,843 | $78,118 | $28,420 | $22,353 | $9,335 | $40,862 | $148,933 |
| Chain, of iron/steel, n.e.s. in 73.15 | $18,869 | $2,088 | $2,792 | $6,494 | $2,293 | $8,542 | $2,368 |
| Parts of chains (excl. articulated link chain), of iron/steel | $1,352 | $6,021 | $4,455 | $33,244 | $20,154 | $30,511 | $17,316 |
| Total | $41,157 | $176,124 | $98,428 | $904,472 | $1,210,052 | $117,661 | $213,804 |
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