Commodity200520062007200820092010
Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ...    $10,816 
Casing & tubing of a kind used in drilling for oil/gas, of iron/steel$6,911$13,088$692   
Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ...  $26,187 $136,397 
Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... $4,567$925$6,459 $729
Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ...$6,832     
Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ...$4,463  $18,687$45,082$4,230
Total$18,206$17,655$27,804$25,146$192,295$4,959