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| Commodity | 2005 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $3,209 | | | | $40,000 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | $23,092 | $66,914 | | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | $1,540 | | | $31,168 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | $1,200 | | | $39,680 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $141,864 | | $40,848 | | | |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | | | | $36,370 | $78,229 | $822 |
| Total | $141,864 | $3,209 | $66,680 | $103,284 | $78,229 | $111,670 |
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