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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $33,216,713 | $13,937,909 | $55,710,353 | $7,322,426 | $5,249,817 | $1,845,188 | $8,176,654 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $613,593 | $31,009 | $170,459 | $1,758,068 | $1,738,886 | $3,172,163 | $926,141 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $1,031,380 | $849,569 | $38,507,054 | $1,187,830 | $644,288 | $964,129 | $1,185,115 |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $2,230,756 | | $295,726 | $5,973,369 | $1,168,619 | $93,664 | $198,595 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $1,036,038 | $15,073,238 | $12,808,525 | $1,373,353 | $3,297,885 | $2,906,420 | $292,134 |
| Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ... | $7,656,952 | $13,043,970 | $14,558,317 | $15,794,700 | $17,768,974 | $43,223,618 | $13,388,513 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | $2,021,432 | $587,342,105 | $392,964,200 | $26,229,453 | $8,186,824 | $8,600,987 | $18,672,627 |
| Total | $47,806,864 | $630,277,800 | $515,014,634 | $59,639,199 | $38,055,293 | $60,806,169 | $42,839,779 |
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