condition mean min max 0 h after light 1.8670200000000001 1.72777 2.00627 4 h after light 3.657575 3.63361 3.68154 8 h after light 4.0193200000000004 3.27335 4.76529 4 h after dark 2.9152649999999998 2.85762 2.97291 8 h after dark 2.329255 2.25924 2.39927 12 h after dark 1.9485200000000003 1.78801 2.10903