condition mean min max 4 h after light 0.00666655 0.0 0.0133331 8 h after light 0.0054434 0.0 0.0108868 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.004827365 0.0 0.00965473