condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.137299 0.0 0.274598 12 h after light 0.0390924 0.0 0.0781848 4 h after dark 0.0 0.0 0.0 8 h after dark 0.11898366666666667 0.0 0.227142 12 h after dark 0.015103900000000002 0.0 0.0453117