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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 ... | $101,352 | $39,351 | $81,918 | $437,742 | $10,280 | $2,769,171 | $104,580 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $290,721 | $14,320 | $16,306 | $3,096 | $172,143 | $10,263 | $766 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $5,321 | $27,849 | $15,101 | $25,218 | $128,587 | $313,785 | $479,282 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | $424 | $88 | $11,840 | $21,766 | $2,500 | $27,610 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $40,047 | $755,130 | $127,369 | $19,399 | $6,653 | $150,333 | $521 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $46,376 | $16,930 | $18,242 | $26,873 | $4,094 | $30,410 | $911,354 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $368,073 | $134,327 | $92,374 | $1,157,546 | $278,009 | $1,543,647 | $155,825 |
| Total | $851,890 | $988,331 | $351,398 | $1,681,714 | $621,532 | $4,820,109 | $1,679,938 |
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