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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Pumice stone, crude/in irregular pieces, incl. crushed pumice (bimskies) | $924 | $7,068 | | | | |
| Pumice stone (excl. crude/in irregular pieces/crushed (bimskies)) | $1,535 | $3,511 | $5,618 | $6,981 | $19,422 | $26,984 |
| Total | $2,459 | $10,579 | $5,618 | $6,981 | $19,422 | $26,984 |
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