condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0767845 0.0 0.307138 3 h after dark 0.0 0.0 0.0 6 h after dark 0.10841866666666666 0.0 0.325256 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0