It's a big concern indeed. Women tend to avoid using public bathrooms for this reason. I was told there was even a special police force for this but there's not much they can do.
Be really careful if you go.
I plan to, if I do go I plan on asking my male friend who's parents grew up there and spent a large part of his childhood there, to go with me. As he has warned me of a couple areas to avoid in the country, but said most of the time I should be safe to grab ice cream at 2 am in most areas. I just don't want to risk it still not knowing anyone so I'll probably ask him to go if I manage to coordinate every thing to go.