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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $15,698 | $22,741 | $7,403 | $28,177 | $160,393 | $161,912 | $231,392 |
| Articulated link chain other than roller chain, of iron/steel | $82,911 | $58,157 | $19,930 | $68,452 | $19,338 | $53,962 | $55,033 |
| Parts of articulated link chain of iron/steel | | | $10,065 | $6,472 | | | $51 |
| Skid chain of iron/steel | | | $2,945,407 | $3,602,770 | $520,705 | $762,254 | $1,657,934 |
| Stud-link chain of iron/steel | | $50,016 | | | | | |
| Welded link chain of iron/steel | $21,820 | $57,190 | $46,375 | $42,584 | $8,465 | $27,206 | $58,196 |
| Chain, of iron/steel, n.e.s. in 73.15 | $25,357 | $14,683 | $12,303 | $29,080 | $7,997 | $15,653 | $4,671 |
| Parts of chains (excl. articulated link chain), of iron/steel | $349,511 | $2,557 | $10,909 | $12,902 | $25,662 | $125,492 | $211,633 |
| Total | $495,297 | $205,344 | $3,052,392 | $3,790,437 | $742,560 | $1,146,479 | $2,218,910 |
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