Commodity2005200620072008200920102011
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$10,502$8,826$172$285$12,649 $24,989
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$52,289,517$72,530$150,618$365,113$6,249  
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$591,401$1,276,467$449,966$37,371$69,661$383,229$240,179
Casing of a kind used in drilling for oil/gas, having circular cross-sectio ...$18,069$392$60$62,378$64,917$3,139,353$12,532,369
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...$364,571$108,457$87,366$28,974$69,480$73,369$71,597
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...$79,757$35,524$136,518$211,001 $12,493$24,807
Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ...$60,410$1,271,246$16,369$1,036,384$862,479$383,404$189,333
Total$53,414,227$2,773,442$841,069$1,741,506$1,085,435$3,991,848$13,083,274