I think I post this same message after each exam results are sent out. I don't know about current statistics but back when I started t certification process the average numbers of sittings to pass was three. This was also in the day when the exam was given once a year. The three sittings still held true after the exam went to twice a year the only difference was you could achieve certification sooner because you ddn't have to wait 12 months. As I understand it, the information candidates receive these days n test results has more validity than when I sat for the exam.
C. Joyce Hawkins, CAP, OM
Freelance Consultant, Retired
St. Peters MO