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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 ... | $402 | $272 | $130,140 | | $284,402,349 | $415,392,293 | $734,124,046 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $275,402 | $3,860,883 | $280,462 | $504,181 | $664,388 | $1,584,971 | $790,754 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $89,613 | $39,128 | $399,770 | $38,025 | $443,364 | $2,362,013 | $7,246 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $39,783 | $129,883 | $86,958 | $100,066 | $140,412 | $28,522 | |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $951,583 | $1,245,569 | $842,721 | $622,105 | $578,244 | $959,024 | $463,599 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $3,307,369 | $2,554,585 | $4,754,645 | $7,666,627 | $3,741,595 | $4,337,939 | $5,795,213 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $1,157,331 | $642,484 | $1,299,919 | $916,301 | $636,991 | $1,414,119 | $507,846 |
| Total | $5,821,483 | $8,472,804 | $7,794,615 | $9,847,305 | $290,607,343 | $426,078,881 | $741,688,704 |
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