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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $404,658 | | $142,146 | $2,291,087 | $269,696 | $10,670,590 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $231,553 | $120,263 | $1,548,215 | $5,037,238 | $1,598,227 | $8,167,340 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,404,973 | $933,737 | $576,870 | $22,911,280 | $460,943 | $5,511,870 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $2,685,349 | $945,058 | $2,853,229 | $7,173,458 | $4,245,029 | $6,525,750 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $427,343 | $1,844,953 | $14,899,483 | $22,686,953 | $28,116,873 | $43,252,790 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $78,579 | $17,625,253 | $11,670,469 | $319,214 | $19,376,471 | $8,096,480 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $600,655 | $996,267 | $2,339,191 | $3,823,402 | $9,236,651 | $6,795,440 |
| Total | $5,833,110 | $22,465,531 | $34,029,603 | $64,242,632 | $63,303,890 | $89,020,260 |
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