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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Siliceous fossil meals (e.g., kieselguhr, tripolite & diatomite) & sim. sil ... | $60,439,302 | $157,539,163 | $60,042,087 | $67,769,778 | $41,123,886 | $44,498,576 | $55,878,620 |
| Total | $60,439,302 | $157,539,163 | $60,042,087 | $67,769,778 | $41,123,886 | $44,498,576 | $55,878,620 |
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