condition mean min max 2 h after light 1.0387101666666667 0.558172 1.73356 6 h after light 1.291168 0.709538 1.72705 10 h after light 0.9744085 0.803386 1.33536 14 h after light 0.9784088333333334 0.431005 1.38305 18 h after light 1.1489848333333332 0.780987 1.83446 2 h after dark 0.744956 0.420302 0.975278