Another Guess About the value of the Illicit Art Market

Arthur Brand is quoted as suggesting, on what grounds is unclear, that one can put a price on the illegal art market as a whole:

Brand himself estimates the illegal art market's value to be around 8 billion euros ($8.9 billion) a year."The amount of illegal activity in the art world is horrible, and I believe 30 percent of what is being offered is fake," he said.

What percentage of that can be applied to antiquities (if we consider them as 'art' at all) is also unclear.