Sub-Chapter | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
Hydrogen, rare gases and other non-metals. | $6,813 | | | $690 | $2,701 | |
Other inorganic acids and oxygen compounds | | $8,755 | | | $257 | |
Ammonia, anhydrous or in aqueous solution. | | $341 | | | | |
Sodium hydroxide (caustic soda); | | | $36 | | | |
Artificial corundum, whether or not chemically defined; | $704 | | | | | |
Chlorides, chloride oxides and chloride hydroxides | | | | | | $89 |
Carbides, whether or not chemically defined. | | | | $2,573 | | |
Total | $7,517 | $9,096 | $36 | $3,263 | $2,958 | $89 |
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