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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 ... | | | $6,959 | $24,938 | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $494 | | | $21,222 | $43,700 | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $7,106 | | | | $217 | $25 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $3,588 | | $97,899 | $7,090 | $25,066 | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $107,965 | $24,506 | $17,157 | $4,537 | $119,320 | $50,850 | $26,974 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $10,218 | $32,188 | $74,496 | $244,959 | $65,543 | $560 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $538,480 | $697,589 | $172,252 | $254,225 | $1,000,049 | $1,344,542 | $221,734 |
| Total | $650,527 | $739,419 | $326,455 | $386,508 | $1,433,094 | $1,461,152 | $249,293 |
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