condition mean min max 2 h after light 92.402 61.7028 116.592 6 h after light 93.41486666666667 69.3847 130.59 10 h after light 66.8099 54.1949 85.476 14 h after light 68.9546 57.5261 77.3115 18 h after light 75.8763 53.3062 99.443 2 h after dark 112.914 85.8828 145.979