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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 ... | | $5,644 | | $64,110 | | $143,666 | $1,694 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $30,385 | $2,847 | | | $2,507 | | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | | $125,870 | $19,863 | $1,106,433 | $929,050 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $2,682 | | $295,373 | $173,661 | $285,895 | $370,938 | $224,212 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $10,127 | | $1,685 | $16,589 | $78,916 | $231,392 | $608,669 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $188,827 | $245,020 | $240,140 | $343,096 | $166,060 | $481,866 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $18,067 | $2,685,071 | $49,819 | $1,185,472 | $256,378 | $210,670 | $51,401 |
| Total | $61,261 | $2,882,389 | $591,897 | $1,805,842 | $986,655 | $2,229,159 | $2,296,892 |
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