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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 ... | $122,687,465 | $266,334 | $122,690,319 | $179,802,003 | $210,757,673 | $1,020,068 | $124,191,658 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $581 | | $420,678 | $3,718 | $31,237 | $218,079 | $1,977,253 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | $625,235 | | | | $8,070 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $214,005 | | | $1,120,508 | | $381,606 | $2,587,869 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $1,466,704 | $676,452 | $3,623,274 | $347,596 | $499,227 | $3,433,980 | $215,624 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $34,239 | $80,697 | $55,988 | $531,455 | $176,573 | $3,514 | $358,505 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $108,529 | $4,682 | $14,085 | $8,127 | $219 | $62 | $1 |
| Total | $124,511,523 | $1,028,165 | $127,429,579 | $181,813,407 | $211,464,929 | $5,057,309 | $129,338,980 |
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