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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $66,174 | $105,276 | $52,203,474 | $155,313,894 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $122,936 | $272,759 | $78,232 | $51,535 | $69,501 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $41,935 | $2,678 | $12,804,607 | $54,575 | $901,288 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $20,044 | $9,550 | | $2,688 | $32,399 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $66,105 | $93,870 | | $168,159 | $155,947 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $42,286 | $2,009 | | $63,329 | $56,100 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $4,485 | $3,347 | $17,313 | $13,500 | |
| Total | $363,965 | $489,489 | $65,103,626 | $155,667,680 | $1,215,235 |
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