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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 ... | $404,048 | $142,375 | $392,774 | $897,017 | $486,048 | $58,577 | $365,002 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $4,421,655 | $730,121 | $2,546,291 | $2,159,172 | $1,416,153 | $755,379 | $973,361 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $77 | $236,028 | $842,905 | $743,800 | $861 | $150,956 | $341,015 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $4,726,300 | $3,180,239 | $3,551,722 | $1,179,711 | $2,084,280 | $767,070 | $1,359,112 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $913,060 | $858,536 | $1,961,980 | $1,169,035 | $1,216,419 | $961,098 | $1,413,885 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $593,737 | $406,857 | $92,803 | $2,142,321 | $1,491,049 | $442,447 | $2,694,511 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $12,384 | $5,884 | $80,643 | $80,130 | | $2,050 | $127,846 |
| Total | $11,071,261 | $5,560,040 | $9,469,118 | $8,371,186 | $6,694,810 | $3,137,577 | $7,274,732 |
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