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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 ... | $30,067 | | $69,202 | $114,641 | $1,424,517 | $6,545,925 | $17,428,419 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $390,252 | $240,595 | $513,771 | $10,252 | $11,655,781 | $7,600,190 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $23,249 | $164,122 | $3,771 | $25,530 | $203 | $128,442 | $88,532 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $85 | $37,958 | $19,303 | $9,349 | $33,160 | $112,313 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $2,209,342 | $2,096,323 | $2,407,539 | $1,961,322 | $1,253,271 | $3,433,198 | $3,439,732 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | | $62,031 | $217,097 | $4,736 | | $108,829 | $237,135 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $90,343 | $478,999 | $511,715 | $609,836 | $363,737 | $687,526 | $3,530,324 |
| Total | $2,743,338 | $3,080,028 | $3,742,398 | $2,735,666 | $14,730,669 | $18,616,423 | $24,724,142 |
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