How many ghosts do you have in your game?

In the saved game I am playing currently I don't have any in a playable household or a housed household, but I do have a couple of ghosts in a 'not in world' households, usually that have spawned during ghost bar nights but also a few that have appeared (spawned) because of a lot trait. I have had a playable ghosts in other saved game that I am also playing but I usually have them come to live via game mechanics, having my spellcaster sims revive them is one favorite of mine. I am quite neutral when it comes to ghosts. If a Sim of mine does die I usually have their urn/stone moved to the cemetery and then release their ghost to the netherworld but if it is a favorite or a favored Sim that has died I usually make them playable back into the household as a ghost and then find a way to bring them back to life, without cheats. It just depends on their stories to be honest. It might change when I get the new expansion though.