There are over 146,000 quizzes online now, but in the rankings it still shows 128,000. Maybe it's time to update that now? That's a difference of more than 18,000 quizzes -- would make a non-trivial change to what is considered top 20%. It's probably not your top priority, Terry, but it sure would be nice if this could open up. I'll bet I'm not the only one who'd be grateful
EDIT: Okay, I did the math, and it looks like the actual numbers are being taken into account already.

Well, it might still be nice to see a more accurate number reflected in the rankings.