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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 ... | | | $23,146 | $14,390 | $28,386 | $2,737 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $16,338 | $47,912 | $370,947 | $386,363 | $136,834 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $52,852 | $897 | $8,303 | $385,995 | $1,107,824 | $61,767 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | | | | $480,034 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $46,535 | $468,420 | $875,670 | $3,852,357 | $808,031 | $186,394 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $637,298 | $18,759 | $305,160 | $158,977 | $474,390 | $180,822 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $25,981 | $20,107 | $53,717 | $274,581 | $111,261 | $27,950 |
| Total | $762,666 | $524,521 | $1,313,908 | $5,057,247 | $2,916,255 | $1,076,538 |
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