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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | $1,613,483 | $612,438 | $747,937 | $5,673,153 | $4,180,428 | $26,966 | $357,232 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | | | | | | $31,953 | $9,571 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $4,171,573 | $4,683,037 | $6,364,244 | $8,496,297 | $3,746,387 | $5,955,268 | $6,794,684 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $392,815 | $511,922 | $932,416 | $897,481 | $400,143 | $689,043 | $1,290,111 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $338 | $790 | $28,044 | $47,878 | $12,425 | $20,355 | $9,629 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $2,902,358 | $4,198,201 | $6,543,965 | $11,446,334 | $5,950,992 | $8,108,346 | $9,926,355 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $226,491 | $153,611 | $310,815 | $168,799 | $61,218 | $161,433 | $449,173 |
| Total | $9,307,058 | $10,159,999 | $14,927,421 | $26,729,942 | $14,351,593 | $14,993,364 | $18,836,755 |
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