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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Artificial corundum, whether or not chemically defined | $2,711,141 | $3,345,324 | $5,218,367 | $14,667,514 | $12,941,125 | $31,587,117 | $33,656,059 |
| Aluminium oxide (excl. art. corundum) | $28,894,354 | $29,625,572 | $25,455,234 | $35,318,150 | $16,990,112 | $21,298,327 | $21,390,522 |
| Aluminium hydroxide | $24,522,180 | $28,952,436 | $25,831,498 | $25,684,706 | $16,818,695 | $26,050,624 | $25,152,829 |
| Total | $56,127,675 | $61,923,332 | $56,505,099 | $75,670,370 | $46,749,932 | $78,936,068 | $80,199,410 |
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