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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 ... | $8,366,557 | $3,264,676 | $2,299,358 | $7,903,863 | $4,974,249 | $2,768,018 | $9,384,220 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $3,576,651 | $5,027,247 | $1,321,625 | $1,212,274 | $2,015,215 | $3,051,001 | $8,522,784 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $1,541,822 | $601,767 | $1,482,667 | $3,195,317 | $1,559,660 | $5,243,277 | $2,343,257 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $1,323,794 | $2,019,823 | $2,884,474 | $1,187,407 | $1,255,167 | $1,821,877 | $1,479,511 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $152,199 | $900,505 | $851,672 | $31,206 | $280,498 | $1,222,391 | $1,804 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $472,963 | $944,418 | $1,296,345 | $284,138 | $239,239 | $307,933 | $863,831 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $1,021,138 | $1,024,671 | $2,232,785 | $1,380,351 | $854,830 | $1,244,926 | $2,352,596 |
| Total | $16,455,124 | $13,783,107 | $12,368,926 | $15,194,556 | $11,178,858 | $15,659,423 | $24,948,003 |
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