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| Commodity | 2005 | 2006 | 2010 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $3,428,137 | $10,208,902 | $54,938,810 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $886,835 | $541,237 | $17,581 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $53,871 | $89,033 | $573,996 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $26,736 | $74,158 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $13,851 | $17,016 | $107,354 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $98,087 | $550,908 | $256,904 |
| Total | $4,480,781 | $11,433,832 | $55,968,803 |
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