As far back as I can remember, not many. I have taken two or three trips abroad since joining, and I believe those were the only instances when I didn't have continuous 24-hour access for various reasons.
Hardly here at all when I first joined. Kept getting inundated by the Trump tsunami on the homepage.
But this new pair of inflatable underpants seems to be doing the trick and I'm here most days now. Guess I've found enough fun people to play with to justify braving the storm. ;-)