condition mean min max 2 h after light 59.1887 49.6551 80.2825 6 h after light 48.52435 37.3644 58.6366 10 h after light 83.13676666666666 59.4711 132.282 14 h after light 69.72085 51.6705 82.48 18 h after light 73.3672 66.1345 84.3162 2 h after dark 94.41073333333333 63.86 121.876