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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 ... | | $23,985 | | | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $341 | $258 | | | $1,033 | $655 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $20,523 | $60,642 | | | | $23,459 | $517 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $3,251 | $7,204 | $366 | $310 | $1,109 | $3,009 | $2,445 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $1,734,109 | $2,661,063 | $1,422,844 | $687,778 | $106,209 | $171,623 | $259,986 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $125,920 | $509,439 | $771,858 | $1,255,730 | | | $112,722 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $1,550,074 | $1,131,544 | $2,716,060 | $5,563,993 | $2,062,051 | $1,165,341 | $368,963 |
| Total | $3,434,218 | $4,394,135 | $4,911,128 | $7,507,811 | $2,170,402 | $1,364,087 | $744,633 |
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