Christian,
You were SO close to passing! The exam simulator requires a minimum of 75% for an overall pass grade. So you were just a question or two away from getting it.
As far as the real PMP exam goes... nobody except PMI knows and they won't say. Please see page 32 of the PMP Handbook
www.project-management-prepcast.com/pmphb
where they explain how the passing score is established. But they do not divulge what number of questions you have to answer correctly to pass. That part of the equation is a blackbox.