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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $168,911 | $32 | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $20,588 | $22,351 | $9,744,453 | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | $20,091 | $235 | $2,419 | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $45,921 | | | | | $1,994 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $50,412 | $366,603 | | $5,796 | $11,261 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $66 | | $171,189 | | | $7,970 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $185,658 | $407,448 | $99,941 | $5,297 | $3,116 | $11,376 |
| Total | $231,645 | $647,359 | $680,207 | $9,749,985 | $11,331 | $32,601 |
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