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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $790,994 | $874,400 | $1,332,780 | $1,620,741 | $1,332,350 | $1,787,267 | $1,662,276 |
| Articulated link chain other than roller chain, of iron/steel | $956,587 | $868,065 | $1,027,976 | $1,207,521 | $978,939 | $1,016,794 | $1,399,485 |
| Parts of articulated link chain of iron/steel | $26,970 | $100,399 | $127,066 | $89,643 | $68,027 | $240,241 | $137,404 |
| Skid chain of iron/steel | $11,611 | $23,530 | $77,124 | $10,607 | $42,349 | $85,560 | $47,558 |
| Stud-link chain of iron/steel | $11,067 | $9,341 | $67,723 | $174,664 | $29,310 | $268,373 | $28,142 |
| Welded link chain of iron/steel | $314,569 | $464,202 | $644,330 | $286,428 | $351,401 | $724,912 | $675,968 |
| Chain, of iron/steel, n.e.s. in 73.15 | $293,340 | $531,776 | $745,856 | $580,303 | $283,378 | $674,779 | $527,698 |
| Parts of chains (excl. articulated link chain), of iron/steel | $335,078 | $646,348 | $226,702 | $662,960 | $469,620 | $380,972 | $545,991 |
| Total | $2,740,216 | $3,518,061 | $4,249,557 | $4,632,867 | $3,555,374 | $5,178,898 | $5,024,522 |
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