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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 ... | $253,860 | | $240,406 | $117,202 | $269,980 | | $48,060 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $2,609 | | $51,182 | $110,218 | $977,946 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $3,655 | $7,076 | $33,490 | $543,285 | $77,608 | $1,686 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | | $157,537 | $21,955 | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $11,499 | | | $695,076 | $243,981 | $186,145 | $287,901 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $59,588 | $3,033,806 | $1,053,931 | $411,554 | $22,615 | $63,272 | |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $95,056 | $126,010 | $53,024 | $1,786,043 | $325,984 | $420,198 | |
| Total | $420,003 | $3,166,080 | $1,354,437 | $3,252,084 | $1,538,018 | $1,725,169 | $337,647 |
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