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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe (excl. seamless), of a kind used for oil/gas pipelines, of iron/s ... | $311 | $587,805 | $2,865,618 | $1,603,950 | $40,921 | $307,533 | $2,774,023 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | | $14,201 | $507,845 | $1,018,150 | $332,466 | $56,379 | $25,830 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $5,620,291 | $9,938,885 | $10,390,163 | $14,018,496 | $3,599,306 | $5,275,103 | $6,849,224 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $7,771,538 | $15,001,451 | $12,668,015 | $17,324,683 | $8,313,878 | $11,671,823 | $23,385,408 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $112,236 | $524,453 | $234,137 | $827,956 | $48,860 | $2,358,473 | $404,099 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $3,394,080 | $9,194,276 | $12,364,816 | $21,375,402 | $3,790,799 | $6,936,446 | $9,634,502 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $1,416,379 | $2,195,413 | $4,428,305 | $8,068,389 | $3,448,522 | $4,650,303 | $3,733,641 |
| Total | $18,314,835 | $37,456,484 | $43,458,899 | $64,237,026 | $19,574,752 | $31,256,060 | $46,806,727 |
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