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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 ... | $87,359 | $1,978 | $3,101 | $158 | $119 | $37,526 | $60,035 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $21,974 | $9,742 | $5,019 | $62,632 | $14,987 | $13,520 | $866,405 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $14,381 | $75,195 | $330,678 | $475,101 | $1,481,983 | $131,255 | $798,662 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $14,433 | $28,507 | $55,223 | $71 | $2,420 | $108,330 | $22,508 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $15,991 | | $106,777 | $115,243 | $108,260 | $202,304 | $381,945 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $26,576 | $4,986 | $9,659 | $22,773 | $57,448 | $6,520 | $31,029 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $638,650 | $2,161,617 | $2,332,929 | $4,247,104 | $1,264,124 | $4,344,075 | $2,789,250 |
| Total | $819,364 | $2,282,025 | $2,843,386 | $4,923,082 | $2,929,341 | $4,843,530 | $4,949,834 |
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