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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 ... | $678,254 | $363,021 | $327,477 | $122,171 | $36,943 | $359,224 | $22,449 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $518,019 | $275,442 | $20,469 | $1,209,297 | $3,060,773 | $464,713 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $401,487 | $550,051 | $1,066,724 | $363,539 | $369,348 | $192,859 | $155,779 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $21,550 | $4,010 | $600,276 | $4,159 | | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $51,334 | $1,337,528 | $305,972 | $107,723 | $3,182,722 | $1,760,756 | $310,175 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $85,179 | $71,862 | $272,058 | $2,096 | | $24,395 | $376,438 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $352,706 | $279,805 | $544,736 | $760,614 | $545,877 | $252,128 | $450,434 |
| Total | $1,590,510 | $3,124,296 | $3,392,685 | $1,380,771 | $5,344,187 | $5,650,135 | $1,779,988 |
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