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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 ... | $11,259 | $723,434 | $57,166 | $26,292 | $601,610 | $125,189 | $591,161 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $205,966 | $302,700 | $640,827 | $637,619 | $1,985,208 | $1,138,996 | $741,974 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $598,954 | $1,041,549 | $2,848,276 | $10,143,012 | $1,483,428 | $342,938 | $122,278 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $11,507 | $200,964 | $3,305 | $18,865 | $15,288 | $79,535 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $2,316,156 | $2,782,040 | $25,089,683 | $54,556,505 | $13,302,195 | $4,338,260 | $4,765,109 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $1,152,514 | $1,535,273 | $1,705,612 | $2,212,333 | $1,371,584 | $1,307,278 | $892,509 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $372,520 | $478,788 | $1,871,811 | $992,102 | $430,108 | $209,466 | $493,687 |
| Total | $4,668,876 | $7,064,748 | $32,216,680 | $68,586,728 | $19,189,421 | $7,541,662 | $7,606,718 |
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