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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 ... | $3,961,698 | $4,004,510 | $3,917,680 | $5,229,614 | $2,141,975 | $3,239,752 | $3,342,944 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | | | $240,773 | $115,216 | $40,174 | $161,473 | $56,866 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $29,398,333 | $37,629,724 | $41,579,875 | $61,453,221 | $31,414,387 | $37,109,738 | $56,417,753 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $5,285,149 | $8,231,016 | $10,174,717 | $10,283,569 | $7,786,399 | $10,649,743 | $11,609,949 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $819,642 | $1,770,376 | $2,210,492 | $1,234,464 | $1,629,208 | $1,122,956 | $578,031 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $43,272,393 | $55,401,504 | $61,700,466 | $81,975,691 | $35,982,782 | $64,834,549 | $78,471,890 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $6,337,502 | $4,770,286 | $6,908,364 | $7,172,938 | $5,842,664 | $9,189,751 | $6,893,475 |
| Total | $89,074,717 | $111,807,416 | $126,732,367 | $167,464,713 | $84,837,589 | $126,307,962 | $157,370,908 |
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