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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 ... | | $11,336 | $7,997 | $93,567 | $589,454 | | $72,600 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $3,093 | $143 | $2,146 | $390,366 | $39,389 | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $22,969 | $472,614 | $3,597 | | | | $32,217 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $611 | | $3,607 | $84,903 | $58,988 | $6,207 | $458,465 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $5,255 | $35,480 | $60,000 | $303,003 | $125,959 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | | | $2,662 | $35,890 | | |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $7,109 | $3,185 | $8,871 | $721,004 | $892,075 | $50,194 | $531,515 |
| Total | $33,782 | $492,533 | $61,698 | $1,352,502 | $1,918,799 | $182,360 | $1,094,797 |
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