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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 ... | | $9,872 | $1,650 | $1,618 | $637 | $598 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $2,134 | | $34,784 | $7,694 | | $201,810 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $26,944 | $781 | | $224,515 | $75,064 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $7,000 | $30,103 | $8,946 | $15,341 | $4,329 | $62 |
| Total | $9,134 | $66,919 | $46,161 | $24,653 | $229,481 | $277,534 |
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