Sub-Chapter200620072008200920102011
Fluorine, chlorine, bromine and iodine.     $20,987
Hydrogen, rare gases and other non-metals.$10,354$1,656 $6,294 $525
Diphosphorus pentaoxide; phosphoric acid;     $8,303
Other inorganic acids and oxygen compounds$554$443$425$1,361  
Halides and halide oxides of non-metals.     $6,773
Sodium hydroxide (caustic soda);$7,302$569 $531 $12,106
Zinc oxide; zinc peroxide.   $87,588$37,019 
Artificial corundum, whether or not chemically defined; $5    
Hydrazine and hydroxylamine and their inorganic salts$3,754  $448  
Fluorides; fluorosilicates and other complex fluorine salts.$1,207 $1,414   
Chlorides, chloride oxides and chloride hydroxides$8,122   $1,586 
Chlorates and perchlorates; bromates and perbromates$11,308$55,160$35,027$20,108$14,536$29,182
Sulphides; polysulphides    $13,059 
Sulphites; thiosulphates.   $1,455  
Sulphates; alums; peroxosulphates (persulphates).$26,765$3,581$1,111   
Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates$33$35$72  $7
Carbonates; peroxocarbonates (percarbonates)     $98
Silicates; commercial alkali metal silicates. $289    
Salts of oxometallic or peroxometallic acids.$5,298 $17,632$10,353$13,217 
Radioactive chemical elements and radioactive isotopes     $111
Hydrogen peroxide, whether or not solidified with urea $83    
Hydrides, nitrides, azides, silicides and borides $598    
Other inorganic compounds $2 $378$315 
Total$74,697$62,421$55,681$128,516$79,732$78,092