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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Non-electrical arts. of graphite/oth. carbon | $246,483 | $1,062,213 | $2,045,839 | $1,555,418 | $1,165,821 | $560,280 | $767,686 |
| Articles cont. magnesite/dolomite/chromite | $728 | | $1,298 | $1,051 | | | |
| Articles of stone/of oth. min. subs., n.e.s. (excl. of 6815.10-6815.91) | $132,811 | $71,301 | $341,252 | $388,278 | $89,767 | $270,651 | $93,733 |
| Total | $380,022 | $1,133,514 | $2,388,389 | $1,944,747 | $1,255,588 | $830,931 | $861,419 |
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