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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 ... | | $26,795 | $19,105 | $309,675 | $4,489,906 | $1,096,491 | $959,924 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $165 | | | $14,376 | $208,908 | $154,623 | $365,416 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $5,547,362 | $4,269,211 | $5,136,002 | $7,958,206 | $9,739,506 | $13,712,176 | $19,585,250 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $115,242 | $154,601 | $562,158 | $209,707 | $202,792 | $234,635 | $1,445,327 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $151,920 | $908,127 | $822,062 | $2,381,791 | $4,173,466 | $845,167 | $708,165 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $4,723,762 | $7,577,191 | $10,780,836 | $15,371,485 | $9,276,968 | $13,470,804 | $16,704,585 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $2,947,334 | $4,918,756 | $8,135,843 | $14,741,924 | $10,068,305 | $9,096,810 | $11,810,381 |
| Total | $13,485,785 | $17,854,681 | $25,456,006 | $40,987,164 | $38,159,851 | $38,610,706 | $51,579,048 |
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