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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 ... | $3,458,940 | $75,566 | $57 | $29,024 | $2,388,718 | $14,682 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $376,639 | $72,501 | $109,243 | $285,718 | $250,692 | $514,175 | $421,042 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,591,612 | $757,164 | $516,273 | $1,753,937 | $2,040,531 | $248,795 | $434,581 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $126,925 | $33,778 | $487,316 | $3,357,480 | $735,190 | $920,318 | $786,987 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $1,450,101 | $3,815,511 | $4,928,096 | $4,145,405 | $869,305 | $651,334 | $2,473,319 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $5,947,902 | $249,777 | $52,217 | $1,914,838 | $1,554,238 | $435,011 | $73,582 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $311,187 | $890,186 | $299,303 | $592,621 | $646,237 | $654,528 | $232,688 |
| Total | $13,263,306 | $5,894,483 | $6,392,505 | $12,079,023 | $8,484,911 | $3,438,843 | $4,422,199 |
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