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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 ... | $357 | | | | $18,077 | $331,657 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | $664 | $222 | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,245 | $215,660 | $217,014 | $3,886,877 | $3,400,373 | $33,917,913 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $1,753 | $28,596 | $33,728 | $48,499 | $77,411 | $230,114 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | $71,660 | $196,873 | | $1,663 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $101,955 | | $348 | $678 | $3,138 | $4,090 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $23,560 | $136,720 | $19,733 | $61,894 | $47,246 | $305,324 |
| Total | $128,870 | $380,976 | $343,147 | $4,195,043 | $3,546,245 | $34,790,761 |
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