[Update!] How long does it take for Elders to die?

I'm not sure of the exact numbers (plus it varies depending your lifespan settings), but if I'm not mistaken it's a range. Like, once they hit a certain point they have a chance to die each consecutive day of life, with there being a maximum that they will always die upon reaching. I don't remember what the range is, but I think that's how it works.