condition mean min max 4 h after light 4.7526399999999995 4.59696 4.90832 8 h after light 5.60477 5.24447 5.96507 12 h after light 7.02005 6.7053 7.3348 4 h after dark 7.47101 7.42646 7.51556 8 h after dark 6.89935 6.87043 6.92827 12 h after dark 6.272935 6.02772 6.51815