condition mean min max 4 h after light 4081.9 4081.9 4081.9 8 h after light 3941.5499999999997 3765.2 4117.9 12 h after light 3780.75 3754.9 3806.6 4 h after dark 3434.25 3382.2 3486.3 8 h after dark 3604.15 3259.5 3948.8 12 h after dark 4161.25 4020.0 4302.5