Commodity200520062007200820092010
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...  $400   
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... $20    
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... $254 $15,095$4,949$443
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... $13  $839 
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...$130 $2,327$3,269$3,220 
Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ...$24,584$12,936$85,127$9,871$29,523 
Total$24,714$13,223$87,854$28,235$38,531$443