There was a pretty long thread on this a couple years back. Someone did a spreadsheet on the results which was pretty interesting.
I tried a search, but no luck.
I thought I remembered that, too. It was pretty neat. If I remember correctly, the respondents were overwhelmingly introverted (not much of a surprise).
I’ll have to try to find that one. If anyone does happen to find it, could you please post it? Thanks!