condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.02912955 0.0 0.0582591 2 h after dark 0.0298593 0.0 0.0597186 4 h after dark 0.0278759 0.0 0.0557518 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0