Commodity2005200620072008200920102011
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$81,610$6,757,852$3,527,962$39,062 $820,470$640,916
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$200,810$149,741$237,112  $39,145$59,767
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...$363,890$328,500$24,032$344,694$69,684$935,397$324,503
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...  $11,138 $11,718  
Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ...$23,195$3,842 $13,472$2,967 $556
Total$669,505$7,239,935$3,800,244$397,228$84,369$1,795,012$1,025,742