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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 ... | | $85,408 | | | | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $19,134 | | | $880,827 | $61,652 | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | | | $117,565 | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $17,483 | | | | | |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $1,194,053 | $932,142 | $3,025,893 | $4,515,984 | $2,265,975 | $894,117 | $434,189 |
| Total | $1,194,053 | $1,054,167 | $3,025,893 | $4,515,984 | $3,264,367 | $955,769 | $434,189 |
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