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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $14,088 | $28,800 | $390,081 | $168,231 | $53,779 | $81,434 | $99,338 |
| Articulated link chain other than roller chain, of iron/steel | $442,628 | $44,864 | $238,614 | $118,263 | $385,551 | $744,638 | $100,987 |
| Parts of articulated link chain of iron/steel | $69,796 | $676 | $131,775 | $3,072 | $25,295 | $55,671 | $33,487 |
| Skid chain of iron/steel | $427 | | | | | | $1,268 |
| Stud-link chain of iron/steel | $7,050 | | $4,663 | $38,918 | | $12,814 | $9,453 |
| Welded link chain of iron/steel | $34,921 | $21,026 | $29,540 | $22,477 | $69,648 | $18,070 | $83,690 |
| Chain, of iron/steel, n.e.s. in 73.15 | $118,354 | $305,155 | $475,564 | $735,815 | $345,079 | $113,592 | $2,306,194 |
| Parts of chains (excl. articulated link chain), of iron/steel | $26,889 | $1,255 | $1,835 | $187 | $8,560 | $62,749 | $1,395 |
| Total | $714,153 | $401,776 | $1,272,072 | $1,086,963 | $887,912 | $1,088,968 | $2,635,812 |
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