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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $5,428,069 | $4,331,501 | $4,872,810 | $8,263,375 | $4,238,349 | $4,458,247 | $5,916,983 |
| Articulated link chain other than roller chain, of iron/steel | $810,626 | $877,964 | $1,400,795 | $1,731,415 | $1,226,165 | $1,444,220 | $1,430,992 |
| Parts of articulated link chain of iron/steel | $408,538 | $556,509 | $632,960 | $1,399,008 | $598,983 | $354,348 | $518,253 |
| Skid chain of iron/steel | $363,591 | $208,870 | $388,993 | $435,677 | $445,086 | $477,576 | $339,518 |
| Stud-link chain of iron/steel | $289,859 | $233,193 | $207,750 | $369,137 | $359,730 | $344,005 | $1,207,396 |
| Welded link chain of iron/steel | $2,947,064 | $3,293,170 | $2,761,151 | $3,797,624 | $2,711,678 | $2,817,771 | $3,552,784 |
| Chain, of iron/steel, n.e.s. in 73.15 | $506,622 | $693,176 | $688,904 | $669,943 | $507,373 | $594,670 | $734,992 |
| Parts of chains (excl. articulated link chain), of iron/steel | $218,632 | $244,980 | $278,297 | $345,347 | $290,957 | $315,749 | $507,504 |
| Total | $10,973,001 | $10,439,363 | $11,231,660 | $17,011,526 | $10,378,321 | $10,806,586 | $14,208,422 |
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