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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 ... | | | | | $2,016,412 | $5,304,294 | $13,125,601 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $22,737,563 | $23,793,572 | $31,575,588 | $39,500,745 | $8,194,198 | $8,232,860 | $8,107,894 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $866,622 | $277,133 | $71,744 | $90,587 | $12,248 | $2,423,034 | $1,112,335 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $2,679 | | $6,688,957 | $80 | | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $348,996 | $48,291 | | $283,075 | $5,264,437 | $8,228,994 | $14,214,714 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $67,401 | $20,425 | $331,293 | $393,428 | $1,121,992 | $124,772 | $599,033 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $1,022,916 | $234,543 | $1,210,411 | $336,665 | $42,685 | $104,600 | $65,651 |
| Total | $25,046,177 | $24,373,964 | $39,877,993 | $40,604,580 | $16,651,972 | $24,418,554 | $37,225,228 |
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