What decibel level do you listen at? What is ideal?

I have no idea what decibel level I listen to music at. I simply adjust the volume to be suitable to how I feel at that moment and what genre of music I am listening to at the time.

65-70

I sit 8 ft from the Canton 9k reference stand mounted and SVS subs , my Listening db from 8 ft is in the lower 70ies with max. touching 80 db. If I go louder my ears will bleed. Full length Curtains behind gear, and in front on wall behind sitting position glass enclose large painting 3'x4' ish.Wall to wall carpet vaulted ceiling slopeing  low 8 to 16 feet high.

I very rarely go above 80 dB, and most of the time I linger in the high 60s. 

My system gets turned on around 6am, the house is asleep, keep it around 60-65db. 

Once everyone is up and about, kick it up to 75-80db. 

My system really wakes up around 90db, the sound stage gets huge, you can start to feel the bass, lots more dynamics.

Have had it up over 110db a few time, sounds great outside the house....