Commodity2005200620072008200920102011
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$140,244$307 $445$232$2,214 
Casing of a kind used in drilling for oil/gas, having circular cross-sectio ...      $472
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...      $4,345
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...$288$15,500     
Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ...$54,914$328,673$42,767$27,704$38,613$42,363$112,657
Total$195,446$344,480$42,767$28,149$38,845$44,577$117,474