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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $11,635,000 | $14,876,000 | $14,396,000 | $16,241,000 | $7,756,000 | $8,620,000 | $10,229,000 |
| Articulated link chain other than roller chain, of iron/steel | $2,638,000 | $3,436,000 | $6,123,000 | $7,677,000 | $14,385,000 | $16,135,000 | $21,934,000 |
| Parts of articulated link chain of iron/steel | $1,571,000 | $1,185,000 | $1,860,000 | $2,567,000 | $1,099,000 | $1,186,000 | $948,000 |
| Skid chain of iron/steel | $1,050,000 | $1,570,000 | $1,208,000 | $786,000 | $571,000 | $735,000 | $880,000 |
| Stud-link chain of iron/steel | $190,000 | $289,000 | $632,000 | $585,000 | $553,000 | $277,000 | $720,000 |
| Welded link chain of iron/steel | $2,449,000 | $1,144,000 | $1,700,000 | $1,215,000 | $830,000 | $993,000 | $1,668,000 |
| Chain, of iron/steel, n.e.s. in 73.15 | $840,000 | $785,000 | $966,000 | $1,510,000 | $1,025,000 | $774,000 | $910,000 |
| Parts of chains (excl. articulated link chain), of iron/steel | $617,000 | $621,000 | $563,000 | $367,000 | $280,000 | $240,000 | $222,000 |
| Total | $20,990,000 | $23,906,000 | $27,448,000 | $30,948,000 | $26,499,000 | $28,960,000 | $37,511,000 |
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