Nice work!
I guess the proper way to do this would be to get access to AW database, and write a simple query to get all girls , filtered by nationalities, and negative vs positive rating.
but then to make it fair you'd need to account for their working duration ,
so that the newcomers won't be automaticaly dissatvantaged for not having as many good reviews as those working for years.
You could added to hot lists as another criteria.