When committing to an Area 51 proposal, you're asked to make the following promise:
I commit to participate actively in [Proposal X] for at least three months, especially during the private beta, and to ask or answer at least ten questions.
What it means to "participate actively" is obviously subjective, so let's ignore that.
Statistically, how many of the users who committed to Area 51 sites followed up and asked or answered at least ten questions?
I found these statistics in another post:
However, these are apparently a selection of sites with somewhat poor statistics, and perhaps not representative. Thus, I'm asking for more comprehensive statistics.