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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | $131,238,187 | $16,800,064 | $21,022,340 | $440,641,420 | $9,652,550 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $4,239,168 | $3,703,606 | $6,119,348 | $9,283,007 | $2,477,801 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $39,098,458 | $51,585,622 | $70,307,642 | $73,147,071 | $58,740,936 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $2,746,087 | $6,125,862 | $1,299,383 | $4,212,773 | $19,097,107 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $225,428 | $785,479 | $2,331,116 | $1,234,340 | $1,724,544 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $11,912,960 | $16,232,932 | $22,504,003 | $21,185,100 | $16,713,959 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $4,610,555 | $8,249,274 | $12,631,421 | $18,920,686 | $34,111,223 |
| Total | $194,070,843 | $103,482,839 | $136,215,253 | $568,624,397 | $142,518,120 |
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