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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 ... | | $4,048 | | $20,051 | $41,411 | $237,525 | $16,000 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $2,071 | $2,300 | $34,485 | $110,007 | | | $4,000 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $288,389 | $22,270 | $63,120 | $129,646 | $1,058,032 | $426,773 | $714,000 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | $20,208 | $29 | | $17,567 | $664,908 | $15,817,000 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $29,770 | $13,640 | $13,924 | $141,639 | $31,403 | $91,000 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $23,065 | $11,895 | $36,119 | $13,047 | $121,941 | $97,545 | $876,000 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $110,645 | $117,680 | $555,673 | $200,380 | $585,686 | $36,391 | $59,000 |
| Total | $424,170 | $208,171 | $703,066 | $487,055 | $1,966,276 | $1,494,545 | $17,577,000 |
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