To answer your question, Sun doesn't publish the information on numbers of certified professionals or the percent of those who sit for exams who pass. Wish I could be more help...
The one thing I can tell you is that Part III does not receive its own grade - it is combined with Part II (since Part III is meant solely as a check to ensure that you're doing your own work, as it's based on Part II's assignment). [ July 25, 2007: Message edited by: Theodore Casser ]
Theodore Jonathan Casser
SCJP/SCSNI/SCBCD/SCWCD/SCDJWS/SCMAD/SCEA/MCTS/MCPD... and so many more letters than you can shake a stick at!