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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 ... | $353,002 | $42,807 | $133,803 | $224,787 | $207,245 | $971,550 | $424,153 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $20,402 | | | $98,079 | $26,164 | | |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $3,832,388 | $6,230,588 | $12,887,743 | $18,484,720 | $8,232,250 | $7,427,572 | $11,753,965 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $8,772 | $53,700 | $140,072 | $187,693 | $209,055 | $221,464 | $366,177 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $11,990 | $1,116 | $133,239 | | $805,151 | $451,070 | |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $8,840,115 | $17,172,521 | $31,012,629 | $39,466,811 | $8,440,098 | $13,512,312 | $24,079,897 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $1,064,621 | $2,499,443 | $2,468,354 | $1,869,715 | $2,125,676 | $3,665,499 | $3,346,340 |
| Total | $14,131,290 | $26,000,175 | $46,775,840 | $60,331,805 | $20,045,639 | $26,249,467 | $39,970,532 |
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