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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $4,056,193 | $1,934,617 | $853,691 | | | $2,294,936 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,256,858 | $390,468 | $8,512,066 | | $121,408,618 | $76,860,629 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $457,933 | $579,985 | $4,801,545 | | | $4,509,872 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $626,032 | $474,638 | $1,800,867 | $438,401 | | $1,020,001 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $14,757,557 | $3,716,946 | $167,406 | | | $4,684,006 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $119,388 | $479,575 | $456,982 | | | $845,068 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $5,439,276 | $642,919 | $6,012,157 | | | $1,136,268 |
| Total | $26,713,237 | $8,219,148 | $22,604,714 | $438,401 | $121,408,618 | $91,350,780 |
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