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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $6,443 | $83,468 | $14,344 | $6,908 | $122,228 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $114,934 | | $167,420 | | $104,618 | $35,154 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $10,021 | $330,740 | | $314,011 | $843,444 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | $726 | $6,250 | $204,319 | $2,405 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $417,713 | $264,207 | $221,185 | $1,103,296 | $1,206,164 | $617,431 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $500 | | | $189,082 | $180,918 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $595,910 | $1,086,799 | $568,276 | $99,258 | $118,676 | $1,074,319 |
| Total | $1,128,557 | $1,368,696 | $1,377,339 | $1,421,217 | $1,941,864 | $2,873,494 |
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