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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 ... | $7,335,722 | $2,455,647 | $10,450,093 | $4,673,525 | $4,346,622 | $7,053,575 | $11,959,586 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $3,685,349 | $2,273,292 | $6,894,100 | $7,675,379 | $8,041,846 | $9,479,579 | $2,603,449 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,020,802 | $1,404,798 | $5,431,643 | $8,756,979 | $3,070,430 | $2,150,534 | $1,119,669 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $2,673 | $1,806,560 | $483,370 | $449,741 | $689,309 | | $448,995 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $3,402,487 | $28,500,662 | $28,251,338 | $23,911,851 | $11,761,521 | $4,645,125 | $12,683,550 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $1,734,653 | $775,753 | $1,385,149 | $6,897,526 | $11,697,409 | $6,462,010 | $472,777 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $8,453,018 | $1,247,761 | $2,425,755 | $5,133,497 | $8,670,881 | $4,029,825 | $2,145,591 |
| Total | $25,634,704 | $38,464,473 | $55,321,448 | $57,498,498 | $48,278,018 | $33,820,648 | $31,433,617 |
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