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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 ... | | | | $2,017 | $83 | $12,776 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | $943 | $261,051 | $33,007 | $19,203 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $62,552 | $49,602 | $42,630 | $51,261 | $110,064 | $2,353 | $5,223 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | | | $221,118 | | $2,248 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $62,579 | $72,269 | $48,142 | $121,557 | $1,791,432 | $64,276 | $34,625 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $39,778 | $206,912 | $414,862 | $1,152,534 | $1,812,378 | $39,120 | $138,469 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $27,974 | $105,015 | $174,322 | $192,648 | $85,814 | $117,073 | $66,069 |
| Total | $192,883 | $433,798 | $680,899 | $1,781,068 | $4,053,896 | $254,801 | $246,634 |
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