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| Commodity | 2005 | 2007 | 2010 | 2011 |
| Artificial guts (sausage casings) of hardened protein/of cellulosic mats | $1,491 | $77,510 | | $275 |
| Tubes, pipes & hoses, rigid, of polymers of ethylene | $13,747 | $23,805 | $149,045 | $106,500 |
| Tubes, pipes & hoses, rigid, of polymers of propylene | $2,047 | $2,311 | $5,800 | $162,896 |
| Tubes, pipes & hoses, rigid, of polymers of vinyl chloride | $203,252 | $29,674 | $371,073 | $667,213 |
| Tubes, pipes & hoses, rigid, of plastics n.e.s. in 39.17 | $4,830 | $18,117 | $74,524 | $335,386 |
| Flexible tubes, pipes & hoses of plastics, having a minimum burst pressure ... | $6,061 | $4,593 | $5,651 | $95,032 |
| Tubes, pipes & hoses of plastics (excl. of 3917.31), not reinf./othw. combi ... | | | $651 | $12,669 |
| Tubes, pipes & hoses of plastics (excl. of 3917.31 & 3917.32), not reinf./o ... | | | $2,830 | |
| Tubes, pipes & hoses of plastics, n.e.s. (excl. of 3917.21-3917.33) | $1,812 | $3,627 | $43,377 | $269,294 |
| Fittings (e.g., joints, elbows, flanges) for tubes, pipes & hoses, of plast ... | $103,226 | $157,369 | $506,853 | $939,921 |
| Total | $336,466 | $317,006 | $1,159,804 | $2,589,186 |
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