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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 ... | $45,317 | | | | | | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $166 | | | | | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $104,730 | $176,104 | $87,203 | $25,524 | $182,152 | $814,411 | $1,696,940 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | $13,183 | $53,003 | $1,933 | | $874,022 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | | | $1,415 | | | $2,000 | $385 |
| Total | $150,213 | $176,104 | $101,801 | $78,527 | $184,085 | $816,411 | $2,571,347 |
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