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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 ... | | $9,746 | $28 | | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $73,431 | $10,258 | | | $196 | $3,815 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $41,553 | $23,394 | $10,183 | $55,665 | $46,953 | $79,894 | $89,969 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | $36 | $2,996 | | | | $3,937 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $4,805 | | | | | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $22 | | $178,589 | | $22,379 | $66,204 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $33,340 | $70,341 | $99,905 | $38,866 | $203,221 | $1,064,915 | $211,931 |
| Total | $153,129 | $113,797 | $113,112 | $273,120 | $250,370 | $1,171,003 | $372,041 |
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