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| Commodity | 2005 | 2006 | 2008 | 2009 | 2010 | 2011 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | $3,200,820 | $1,913,684 | $1,182,962 | $241,501 | | |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $41,418,642 | $15,904,148 | $17,260,085 | $236,619 | | |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $8,660,981 | $4,608,059 | $20,602,528 | $6,010,338 | $5,819,139 | $309,783 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $22,274 | | | | | $3,466 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | | $12,185 | $172,718 | $65,249 | $1,620 | $21,214 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $2,175,905 | $273,546 | $4,092,740 | $1,246,812 | | |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $3,762,021 | $185,810 | $123,642 | $319,522 | $325,403 | $22,964 |
| Total | $59,240,643 | $22,897,432 | $43,434,675 | $8,120,041 | $6,146,162 | $357,427 |
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