|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $1,000 | | $122 | $1,818 | $9,941 | $10,837 | $13,338 |
| Articulated link chain other than roller chain, of iron/steel | $58,000 | $99,764 | $133,100 | $211,237 | $72,056 | $41,737 | $11,918 |
| Parts of articulated link chain of iron/steel | $1,000 | | | | | | |
| Skid chain of iron/steel | | | | | $4,642 | | |
| Welded link chain of iron/steel | | | $3,583 | $9,535 | $12,266 | $228 | $11,763 |
| Chain, of iron/steel, n.e.s. in 73.15 | $155,000 | $36,386 | $7,829 | $49,649 | $15,149 | $59,025 | $33,020 |
| Parts of chains (excl. articulated link chain), of iron/steel | | $4,085 | $1,301 | $12,963 | $17,175 | $2,489 | $922 |
| Total | $215,000 | $140,235 | $145,935 | $285,202 | $131,229 | $114,316 | $70,961 |
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