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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $159,426,000 | $169,451,000 | $197,128,000 | $215,272,000 | $157,945,000 | $197,648,754 | $251,168,461 |
| Articulated link chain other than roller chain, of iron/steel | $93,355,000 | $102,594,000 | $117,416,000 | $140,206,000 | $93,876,000 | $97,466,898 | $145,167,976 |
| Parts of articulated link chain of iron/steel | $21,078,000 | $21,169,000 | $25,314,000 | $28,029,000 | $16,836,000 | $19,793,098 | $25,349,303 |
| Skid chain of iron/steel | $26,453,000 | $33,692,000 | $40,439,000 | $40,382,000 | $34,453,000 | $42,127,578 | $57,187,544 |
| Stud-link chain of iron/steel | $23,596,000 | $15,370,000 | $6,336,000 | $4,046,000 | $23,650,000 | $36,528,058 | $13,014,078 |
| Welded link chain of iron/steel | $87,378,000 | $114,464,000 | $139,865,000 | $166,804,000 | $145,406,000 | $141,157,996 | $176,230,176 |
| Chain, of iron/steel, n.e.s. in 73.15 | $13,004,000 | $14,352,000 | $16,145,000 | $16,962,000 | $15,631,000 | $15,484,144 | $21,116,766 |
| Parts of chains (excl. articulated link chain), of iron/steel | $44,253,000 | $58,396,000 | $72,169,000 | $77,017,000 | $55,872,000 | $57,509,696 | $57,734,533 |
| Total | $468,543,000 | $529,488,000 | $614,812,000 | $688,718,000 | $543,669,000 | $607,716,222 | $746,968,837 |
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