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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 ... | $308,000 | | $5,000 | $3,009,000 | | $212,000 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $16,000 | $1,409,000 | $45,000 | $2,325,000 | $60,000 | $3,908,000 | $1,064,000 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $190,000 | $525,000 | $16,917,000 | $1,565,000 | $896,000 | $1,254,000 | $1,061,000 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | | | $22,000 | $1,318,000 | $6,713,000 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $2,788,000 | $650,000 | $2,928,000 | $2,077,000 | $5,099,000 | $3,072,000 | $23,943,000 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $361,000 | | | $2,906,000 | $4,085,000 | $4,374,000 | $3,105,000 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $67,000 | $195,000 | $16,000 | $164,000 | $349,000 | $602,000 | $1,991,000 |
| Total | $3,730,000 | $2,779,000 | $19,911,000 | $12,046,000 | $10,511,000 | $14,740,000 | $37,877,000 |
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