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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $180,117 | $103,441 | $225,697 | $262,208 | $309,989 | $521,495 | $693,298 |
| Articulated link chain other than roller chain, of iron/steel | $46,961 | $45,548 | $56,707 | $126,841 | $114,298 | $196,251 | $188,968 |
| Parts of articulated link chain of iron/steel | $2,878 | $14,722 | $4,030 | $12,546 | $6,285 | $12,945 | $81,991 |
| Skid chain of iron/steel | $5,609,151 | $6,247,828 | $8,312,465 | $7,068,557 | $5,061,123 | $7,204,490 | $12,077,982 |
| Stud-link chain of iron/steel | $56,028 | $99,408 | $129,384 | $74,027 | $47,084 | $83,179 | $115,763 |
| Welded link chain of iron/steel | $85,190 | $288,158 | $406,315 | $691,359 | $400,697 | $441,576 | $364,997 |
| Chain, of iron/steel, n.e.s. in 73.15 | $75,106 | $53,841 | $71,696 | $105,998 | $34,045 | $341,191 | $220,366 |
| Parts of chains (excl. articulated link chain), of iron/steel | $497,534 | $499,391 | $1,357,836 | $131,519 | $99,353 | $111,141 | $119,830 |
| Total | $6,552,965 | $7,352,337 | $10,564,130 | $8,473,055 | $6,072,874 | $8,912,268 | $13,863,195 |
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