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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Roller chain of iron/steel | $237,430 | $23,003 | $51,061 | $109,057 | $160,446 | $430,438 | $699,026 |
| Articulated link chain other than roller chain, of iron/steel | $6,737 | $30,872 | $9,391 | $10,984 | $431,125 | $62,692 | $43,715 |
| Parts of articulated link chain of iron/steel | $16,990 | $26,593 | $36,254 | $51,242 | $36,968 | $36,190 | $76,730 |
| Skid chain of iron/steel | $72,821 | $144,632 | $125,531 | $207,561 | $418,552 | $950,295 | $773,883 |
| Stud-link chain of iron/steel | $345,869 | $18,201 | $24,096 | $24,736 | $8,600 | $37,957 | $34,918 |
| Welded link chain of iron/steel | | $16,055 | $209,931 | $468,093 | $330,905 | $110,376 | $417,546 |
| Chain, of iron/steel, n.e.s. in 73.15 | $5,690 | $59,887 | $31,239 | $44,305 | $90,623 | $32,401 | $19,038 |
| Parts of chains (excl. articulated link chain), of iron/steel | $17,176 | $22,397 | $6,464 | $102,592 | $131,015 | $80,676 | $113,527 |
| Total | $702,713 | $341,640 | $493,967 | $1,018,570 | $1,608,234 | $1,741,025 | $2,178,383 |
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