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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 ... | $183,663 | $704,238 | $4,341,397 | $16,624,110 | $2,118,699 | $1,810,584 | $1,455,867 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $519,861 | $2,062,583 | $1,274,384 | $1,313,550 | $264,454 | $1,669,734 | $7,722,160 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $26,381 | $27,615 | | $182,000 | | | $8,227 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $7,277 | $961,207 | $46,185 | $30,350 | $367,900 | | $182,381 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $2,732,119 | $6,863,933 | $6,613,929 | $6,266,300 | $2,363,592 | $5,209,942 | $8,989,477 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $16,468,403 | $1,958,586 | $1,701,154 | $2,719,850 | $585,171 | $4,414,243 | $1,414,641 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $124,533 | $68,265 | $79,513 | $5,690 | $426 | $2,702 | $253,610 |
| Total | $20,062,237 | $12,646,427 | $14,056,562 | $27,141,850 | $5,700,242 | $13,107,205 | $20,026,363 |
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