condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.35392666666666667 0.0 1.06178 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0