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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $6,820,902 | $7,528,739 | $5,606,391 | $6,726,754 | $5,725,706 | $6,256,272 | $8,426,654 |
| Articulated link chain other than roller chain, of iron/steel | $7,256,774 | $7,965,547 | $8,536,556 | $9,092,898 | $7,957,085 | $9,635,783 | $10,034,415 |
| Parts of articulated link chain of iron/steel | $4,571,013 | $3,991,512 | $3,532,782 | $3,786,029 | $1,931,741 | $1,345,446 | $1,554,623 |
| Skid chain of iron/steel | $2,970,274 | $3,342,873 | $3,521,801 | $3,994,468 | $3,314,182 | $3,630,329 | $4,175,170 |
| Stud-link chain of iron/steel | $806,989 | $862,006 | $749,538 | $129,605 | $3,147,259 | $534,788 | $430,961 |
| Welded link chain of iron/steel | $3,604,005 | $1,880,717 | $2,225,238 | $1,968,442 | $1,706,013 | $1,960,177 | $2,029,042 |
| Chain, of iron/steel, n.e.s. in 73.15 | $1,620,721 | $4,100,950 | $6,241,652 | $6,688,027 | $4,456,137 | $3,891,687 | $5,900,432 |
| Parts of chains (excl. articulated link chain), of iron/steel | $2,567,856 | $2,582,034 | $3,875,465 | $4,674,749 | $2,617,175 | $5,557,003 | $8,246,217 |
| Total | $30,218,534 | $32,254,378 | $34,289,423 | $37,060,972 | $30,855,298 | $32,811,485 | $40,797,514 |
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