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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Refractory bricks, blocks, tiles & sim. refractory ceramic constructional g ... | $333,608,000 | $378,976,000 | $409,883,000 | $446,466,000 | $301,627,000 | $307,936,513 | $358,727,806 |
| Refractory bricks, blocks, tiles & sim. refractory ceramic constructional g ... | $237,009,000 | $249,066,000 | $268,704,000 | $318,599,000 | $260,015,000 | $257,253,302 | $274,451,686 |
| Refractory bricks, blocks, tiles & sim. refractory ceramic constructional g ... | $60,895,000 | $65,369,000 | $61,970,000 | $67,456,000 | $66,783,000 | $55,738,149 | $64,856,112 |
| Total | $631,512,000 | $693,411,000 | $740,557,000 | $832,521,000 | $628,425,000 | $620,927,964 | $698,035,604 |
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