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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 ... | | | | | $6 | $58,629 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | $13,171 | | $1,408 | | $67,541 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $12,710 | $11,912 | $11,399 | $17 | $7,495 | $1,704 | $5,590 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | $1,189 | | $276,074 | $72,341 | | $8,392 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | | $178,905 | | $5,694 | $3,227 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $4,080 | $109 | $2,192 | $410 | $93,790 | $998 | $8,606 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $21,260 | $20,872 | $74,368 | $9,140 | $100,667 | $26,971 | $67,138 |
| Total | $38,050 | $34,082 | $101,130 | $464,546 | $275,707 | $93,996 | $160,494 |
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