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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $4,048,916 | $2,956,230 | $4,307,712 | $8,082,522 | $7,693,314 | $3,935,861 | $3,027,827 |
| Articulated link chain other than roller chain, of iron/steel | $6,748,524 | $5,998,641 | $3,381,130 | $3,252,463 | $2,527,544 | $4,361,592 | $4,354,672 |
| Parts of articulated link chain of iron/steel | $1,101,099 | $1,045,741 | $1,000,160 | $1,724,989 | $1,430,686 | $880,675 | $1,211,989 |
| Skid chain of iron/steel | $116,352 | $90,671 | $222,888 | $338,775 | $220,689 | $124,735 | $213,321 |
| Stud-link chain of iron/steel | $152,345 | $45,898 | $919,792 | $1,937,618 | $1,824,718 | $520,736 | $657,115 |
| Welded link chain of iron/steel | $1,265,140 | $1,085,807 | $1,261,294 | $1,264,074 | $639,609 | $445,340 | $477,732 |
| Chain, of iron/steel, n.e.s. in 73.15 | $4,352,795 | $3,289,889 | $5,355,886 | $11,868,756 | $11,003,915 | $5,458,712 | $3,152,279 |
| Parts of chains (excl. articulated link chain), of iron/steel | $716,082 | $612,180 | $1,188,776 | $1,964,753 | $1,291,529 | $806,738 | $912,043 |
| Total | $18,501,253 | $15,125,057 | $17,637,638 | $30,433,950 | $26,632,004 | $16,534,389 | $14,006,978 |
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