Commodity200520062007200820092010
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$19,693$154,695$17,840,663$1,823,038$13,777$156,917
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$9,884$874,844$1,952,312$2,716,140$993,443$57,878
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$78,284$434,459$289,063$503,670$64,260 
Casing of a kind used in drilling for oil/gas, having circular cross-sectio ...$299,479 $264,983   
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...$550,989$1,015,100$663,880$2,141,313$246,138$159,433
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... $209$83,037$18,361$418,539$31,102
Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ...$42,088$240,798$768,836$12,577$13,447$66,894
Total$1,000,417$2,720,105$21,862,774$7,215,099$1,749,604$472,224