The text at the bottom of the left statistics shows why this is a bad graph. Only 191 TV subjects from 270 reports, only 30% had origin mentioned. When looking for a suspect it makes sense to mention the origin of the suspect you are looking for.

This is what it should look like with the missing unspecified people readded. Still more foreign mentioned than specifically Deutsh mentioned, which can be explained away with photos or assumption that a white suspect is Deutsh and only specifying when it is ambiguous.