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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $11,522 | $1,765 | $297 | $87,459 | | $376,379,356 | $815,184,032 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $91,772 | $34,358 | $30,703 | $20,325 | $204,263 | $134,731 | $49,958 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $141,611 | $671,134 | $327,197 | $930,023 | $6,728,704 | $565,092 | $248,557 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | $23,765 | | $44,191 | $18,008 | $10,578 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $4,039,183 | $3,607,445 | $3,560,604 | $5,668,059 | $1,663,018 | $1,177,368 | $1,476,386 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $1,048,079 | $838,170 | $4,611,461 | $7,270,039 | $3,107,446 | $401,410 | $356,646 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $3,046,168 | $2,401,659 | $2,351,784 | $3,061,377 | $2,630,439 | $2,679,037 | $4,325,234 |
| Total | $8,378,335 | $7,578,296 | $10,882,046 | $17,081,473 | $14,351,878 | $381,347,572 | $821,640,813 |
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