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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $55,690 | $5,952 | $50,259 | $79,676 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $14,689 | $21,544 | $2,406 | $1,151,302 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $133,578 | $67,182 | $41,175 | $73,887 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $5,502 | $8,253 | $945,646 | $1,880,596 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $15,616 | $23,070 | $2,981 | $5,068 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $115,171 | $56,486 | $153,970 | $136,585 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $50,619 | $62,321 | $112,146 | $46,396 |
| Total | $390,865 | $244,808 | $1,308,583 | $3,373,510 |
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