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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $11,263 | | $25,728,347 | | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $63,270 | $20,399,405 | $1,952,495 | | $29,115 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | | $311,487 | | | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | $33,311 | | | | $1,875 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $40,920 | $114,549 | $385,948 | | $120,197 | $335,752 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | $180 | $1,616 | $192 | | $333 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $10,185 | $67,882 | $45,160 | $78,373 | $20,932 | $7,210 | $19,073 |
| Total | $21,448 | $172,072 | $46,320,952 | $2,729,919 | $21,124 | $156,522 | $357,033 |
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