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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 ... | $56,884 | $44,708 | $25,362 | $126,606 | $35,983 | $11,332 | $9,687 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,420 | $450 | $2,276 | $32 | $6,570 | $49,953 | $24,744 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $90,423 | $66,521 | $154,876 | $42,622 | $3,958 | $74,746 | $14,846 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $26,500 | $178,124 | $25,582 | $8,114 | $20,406 | $16,729 | $33,672 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $67,611 | $48,021 | $13,251 | $125,846 | $156,012 | $59,014 | $11,218 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $185,741 | $412,172 | $515,007 | $281,410 | $171,041 | $506,009 | $316,705 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $207,510 | $367,736 | $930,663 | $793,030 | $823,785 | $301,052 | $35,062 |
| Total | $636,089 | $1,117,732 | $1,667,017 | $1,377,660 | $1,217,755 | $1,018,835 | $445,934 |
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