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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 ... | $806,641 | $1,561,460 | $4,241,481 | $4,965,436 | $1,451,146 | $1,331,429 | $1,383,894 |
| Casing & tubing of a kind used in drilling for oil/gas, of iron/steel | $10,098 | | $213,624 | $62,160 | $38,586 | $12,521 | $2,304 |
| Tubes, pipes & hollow profiles (excl. of 7306.10 & 7306.20), welded, of cir ... | $33,236,768 | $29,017,494 | $38,547,827 | $47,642,272 | $28,954,510 | $31,450,718 | $39,471,550 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.30), welded, of circu ... | $11,556,000 | $14,195,267 | $17,845,560 | $16,604,555 | $9,985,692 | $10,288,323 | $10,989,804 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.40), welded, of circu ... | $553,568 | $395,975 | $603,062 | $693,850 | $310,895 | $727,393 | $150,841 |
| Tubes, pipes & hollow profiles (excl. of 7306.10-7306.50), welded, of non-c ... | $23,710,720 | $26,043,146 | $38,277,183 | $48,191,543 | $22,060,470 | $27,834,538 | $37,327,957 |
| Tubes, pipes & hollow profiles of iron (excl. cast iron)/steel, n.e.s. (exc ... | $1,609,456 | $3,798,882 | $5,416,438 | $5,342,061 | $6,890,171 | $4,809,850 | $2,618,870 |
| Total | $71,483,251 | $75,012,224 | $105,145,175 | $123,501,877 | $69,691,470 | $76,454,772 | $91,945,220 |
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