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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $56,582 | $146,774 | $131,808 | $882,400 | $4,073,758 | $863,429 | $515,073 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $75,780 | $713,434 | $277,264 | $275,010 | $1,451,939 | $296,488 | $181,170 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,130,257 | $809,359 | $35,337 | $1,467,651 | $6,255,971 | $10,645,957 | $1,133,870 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | $843 | $1,575 | | | | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $1,195,848 | $1,018,871 | $2,479,625 | $3,384,016 | $963,524 | $776,630 | $1,825,808 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $2,988,549 | $9,666,652 | $4,379,758 | $3,120,261 | $10,423,170 | $3,269,879 | $1,315,387 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $851,419 | $378,888 | $366,295 | $590,491 | $205,108 | $67,315 | $258,887 |
| Total | $6,298,435 | $12,734,821 | $7,671,662 | $9,719,829 | $23,373,470 | $15,919,698 | $5,230,195 |
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