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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | $49,347 | $3,528 | $308 | $2,301,233 | $440,137 | $162,487 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | | $5,202 | | $7,088 | $3,379 | $24 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $1,151,889 | $2,223,025 | $2,802,266 | $1,257,304 | $1,201,225 | $1,078,657 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $313,495 | $478,928 | $1,306,197 | $651,085 | $571,781 | $621,095 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $49,759 | $104,505 | $143,541 | $55,868 | $25,834 | $106,766 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $2,167,885 | $3,662,714 | | $2,467,798 | $3,190,693 | $3,694,648 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $252,341 | $247,962 | $461,124 | $187,097 | $151,106 | $238,960 |
| Total | $3,984,716 | $6,725,864 | $4,713,436 | $6,927,473 | $5,584,155 | $5,902,637 |
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