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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $1,107,286 | $868,329 | $951,174 | $1,179,048 | $1,137,036 | $1,707,857 | $2,146,711 |
| Articulated link chain other than roller chain, of iron/steel | $1,399,374 | $1,879,218 | $1,775,487 | $1,668,133 | $2,058,534 | $3,874,573 | $3,109,995 |
| Parts of articulated link chain of iron/steel | $42,000 | $69,156 | $147,357 | $81,704 | $42,032 | $147,521 | $188,220 |
| Skid chain of iron/steel | $3,415 | $13,110 | $5,485 | $10,383 | $525 | $116 | $12,171 |
| Stud-link chain of iron/steel | $51,436 | $58,802 | $50,958 | $204,845 | $144,931 | $128,320 | $258,836 |
| Welded link chain of iron/steel | $48,182 | $68,186 | $79,825 | $168,984 | $41,811 | $329,733 | $112,405 |
| Chain, of iron/steel, n.e.s. in 73.15 | $610,086 | $412,323 | $533,480 | $539,518 | $788,726 | $905,503 | $1,763,517 |
| Parts of chains (excl. articulated link chain), of iron/steel | $5,339,738 | $8,116,238 | $11,171,635 | $10,755,974 | $579,929 | $564,366 | $3,153,354 |
| Total | $8,601,517 | $11,485,362 | $14,715,401 | $14,608,589 | $4,793,524 | $7,657,989 | $10,745,209 |
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