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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 ... | $23,405 | $26,720,704 | $31,727 | $33 | | $39,709 | $3,464 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $576,663 | $4,103,179 | $13,335,284 | $956,849 | $503,765 | $327,448 | $324,462 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $44,678 | $1,310,946 | $75,721 | $1,422,762 | $1,348,160 | $5,444,351 | $56,480 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $478 | $36 | $223 | $95,133 | $12,414 | $180,500 | $336,864 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $2,927,046 | $2,437,495 | $4,245,314 | $11,612,774 | $7,548,429 | $6,220,415 | $235,100,742 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $4,055,556 | $157,457 | $205,181 | $175,781 | $408,675 | $1,175,753 | $3,744,815 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $607,990 | $1,318,103 | $1,209,184 | $165,803 | $1,708,479 | $280,107 | $227,051 |
| Total | $8,235,816 | $36,047,920 | $19,102,634 | $14,429,135 | $11,529,922 | $13,668,283 | $239,793,878 |
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