Commodity200520062007200820092010
Chloromethane (methyl chloride) & chloroethane (ethyl chloride)   $1,609$375 
Dichloromethane (methylene chloride)   $265 $257
Chloroform (trichloromethane)     $1,131
Carbon tetrachloride     $376
Trichloroethylene$4,434 $93   
Tetrachloroethylene (perchloroethylene)$2,626 $502$8  
Fluorinated/brominated/iodinated derivs. of acyclic hydrocarbons$988     
Chlorobenzene, o-dichlorobenzene & p-dichlorobenzene $2,067    
Total$8,048$2,067$595$1,882$375$1,764