All but one, and he's the one who made it from 5th to 23th without dying, and then retired when his player got a job on swing shift.
Well, not quite that many. There were a few in the first few levels that got destroyed and lost in Undermountain, and they haven't been recovered.
Everyone else has died between 1 and 10 times, give or take. Each coming back a lot poorer, but more cautious.
However, now that the level 24 Cleric has taken the epic feat 'Ignore Material Components', which functions even on those expensive stuff like True Ress, the cost in diamonds won't be nearly so significant...