Commodity200520062007200820092010
Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ...  $3,614$1,241$50,717$11,461
Casing & tubing of a kind used in drilling for oil/gas, of iron/steel     $2,772
Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... $5,950 $13,370$830 
Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ...  $17,947 $560$4,693
Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ...$4,445     
Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... $9,795    
Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ...$19,983$55,975$104,120$326,491$19,116$30,398
Total$24,428$71,720$125,681$341,102$71,223$49,324