condition mean min max 4 h after light 4.006625 3.55164 4.46161 8 h after light 3.5331349999999997 3.35037 3.7159 12 h after light 3.67185 3.56854 3.77516 4 h after dark 4.615973333333334 4.50811 4.73026 8 h after dark 4.195616666666667 4.00152 4.46202 12 h after dark 3.8382566666666666 3.40346 4.68781