What is the pass rate for the FRM exam?

I'm curious to know, what is the typical pass rate for candidates taking the Financial Risk Manager (FRM) exam? I've heard it's a challenging exam, so I'm wondering if there's a general percentage of individuals who successfully pass it on their first attempt. Additionally, are there any factors that tend to influence the pass rate, such as the level of preparation or the background of the candidates? Understanding the pass rate can help me gauge the level of effort and dedication I'll need to put in to achieve my goal of obtaining the FRM certification.