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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 ... | $333 | | $2,125 | $7,115 | | $62 | $17,615 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $152,400 | $132,389 | $303,119 | $485,327 | | $29,461 | $34,399 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $590,600 | $1,059,130 | $361,823 | $97,071 | $343,157 | $803,247 | $338,573 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | $59,916 | $161,832 | $4,073 | $21,953 | $298,362 | $7,480 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $166,988 | $143,742 | $1,863 | $9,991,316 | $36,540 | $1,917,469 | $4,631,786 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $446,932 | $332,287 | $179,048 | $6,094,364 | $806,497 | $1,361,783 | $1,848,474 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $40,775 | $41,738 | $71,635 | $34,675 | $88,675 | $416,800 | $140,516 |
| Total | $1,398,028 | $1,769,202 | $1,081,445 | $16,713,941 | $1,296,822 | $4,827,184 | $7,018,843 |
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