Commodity2005200620072008200920102011
Compounds cont. an unfused thiazole ring (whether or not hydrogenated) in t ...  $2,580 $1,534$184 
Compounds cont. in the structure a benzothiazole ring-system (whether or no ...$1,177$174$611$6,471$4,720$10,165$13,238
Compounds cont. in the structure a phenothiazine ring-system (whether or no ... $121$4,490 $1,000 $14,538
Total$1,177$295$7,681$6,471$7,254$10,349$27,776