condition mean min max 4 h after light 5091.4 5091.4 5091.4 8 h after light 4641.9 4307.5 4976.3 12 h after light 3621.5 3312.1 3930.9 4 h after dark 4894.85 3084.2 6705.5 8 h after dark 5587.1 4866.5 6307.7 12 h after dark 5311.85 5014.8 5608.9