|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Copper-zinc base alloys (brass), unwrought | $900 | | $22,279 | | | $129,371 | $25,847 |
| Copper-tin base alloys (bronze), unwrought | $178,273 | $217,671 | $115,692 | $387,884 | $53,227 | $811,443 | $6,081,291 |
| Total | $179,173 | $217,671 | $137,971 | $387,884 | $53,227 | $940,814 | $6,107,138 |
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