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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 ... | | | | | | | $566,462 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | | | | | $1,565 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $3,977 | $4,967 | $5,264 | $2,014 | $36,392 | $30,057 | $35,675 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $35 | $360,356 | | | | $6,864 | $8,284 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $338,059 | $751,644 | $1,698,413 | $895,604 | $220,291 | $641,945 | $918,688 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $15,585 | $81,391 | $2,282 | $62,565 | $82,645 | $11,478 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $211,084 | $498,513 | $237,725 | $191,947 | $173,740 | $161,370 | $203,307 |
| Total | $553,155 | $1,631,065 | $2,022,793 | $1,091,847 | $492,988 | $922,881 | $1,745,459 |
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