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| Commodity | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Pumice stone, crude/in irregular pieces, incl. crushed pumice (bimskies) | $609 | $445 | | | | |
| Pumice stone (excl. crude/in irregular pieces/crushed (bimskies)) | $4,923 | $70 | $13,757 | $7,686 | $418,726 | $27,367 |
| Total | $5,532 | $515 | $13,757 | $7,686 | $418,726 | $27,367 |
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