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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Roller chain of iron/steel | $22,575,089 | $23,077,493 | $29,761,114 | $29,587,982 | $19,324,735 | $20,524,243 |
| Articulated link chain other than roller chain, of iron/steel | $6,428,504 | $11,099,398 | $8,789,131 | $9,146,340 | $6,417,927 | $8,671,806 |
| Parts of articulated link chain of iron/steel | $1,796,164 | $1,780,821 | $1,877,768 | $1,081,315 | $1,342,304 | $1,122,911 |
| Skid chain of iron/steel | $6,133,666 | $9,814,494 | $4,995,760 | $1,596,235 | $2,983,334 | $5,364,467 |
| Stud-link chain of iron/steel | $1,778,574 | $1,010,946 | $376,922 | $398,978 | $179,271 | $252,563 |
| Welded link chain of iron/steel | $4,673,350 | $4,975,715 | $6,456,309 | $7,363,779 | $8,984,221 | $8,806,806 |
| Chain, of iron/steel, n.e.s. in 73.15 | $7,864,631 | $9,498,268 | $11,543,276 | $12,163,199 | $7,764,275 | $8,802,357 |
| Parts of chains (excl. articulated link chain), of iron/steel | $4,419,263 | $4,309,430 | $4,511,694 | $5,812,001 | $6,348,284 | $5,139,601 |
| Total | $55,669,241 | $65,566,565 | $68,311,974 | $67,149,829 | $53,344,351 | $58,684,754 |
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