what does "mit einem guten Fünftel" mean here?
Approximately a fifth, and I think it implies more than a fifth, but I'm not really sure about that.
It usually translates to "more than a fifth". I'd say "at least a fifth" is fine aswell.
gut ein Fünftel or ein gutes Fünftel is something like "a bit more than a fifth".
thanks for the help anyhow :-)