As someone who has never visited good reads, you have the ratings in parenthesis, but, what are they out of? (4.11) doesn't really tell me much, is that 4.11 o

As someone who has never visited good reads, you have the ratings in parenthesis, but, what are they out of? (4.11) doesn't really tell me much, is that 4.11 out of 5, or 4.11 out of 10? (To pick a random rating). Yes, I can not be lazy and visit the site to find out, but if you are leaving the comment up to be helpful, it would be appreciated to clarify their rating scheme for those of us who aren't familiar.